Failed to connect to the VM observatory service at: ws://127.0.0.1:57131/W1EcZRHLslc=/ws

[PadreMontoya]

At one point Flutter was working a few months ago. I took some time away and came back. Performed a flutter upgrade and now I'm running the versions below. The same problem was happening before I upgraded this evening.

Flutter 1.17.5 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 8af6b2f038 (9 days ago) • 2020-06-30 12:53:55 -0700
Engine • revision ee76268252
Tools • Dart 2.8.4

Steps to Reproduce

I created a brand new Flutter project from scratch (no changes), launched an emulator and tried to debug it. I'm getting this error:

Running "flutter pub get" in test_app1...                           0.5s
Launching lib\main.dart on Android SDK built for x86 in debug mode...
Running Gradle task 'assembleDebug'...
√ Built build\app\outputs\apk\debug\app-debug.apk.
Installing build\app\outputs\apk\app.apk...
Debug service listening on ws://127.0.0.1:57131/W1EcZRHLslc=/ws
Syncing files to device Android SDK built for x86...
Failed to connect to the VM observatory service at: ws://127.0.0.1:57131/W1EcZRHLslc=/ws
java.io.IOException: Failed to determine protocol version

I'm using Android Studio, so I'm not 100% sure of what commands are being run behind the scenes.

Logs

flutter doctor -v :

[√] Flutter (Channel stable, v1.17.5, on Microsoft Windows [Version 10.0.18362.900], locale en-US)
    • Flutter version 1.17.5 at C:\Users\antho\Documents\Flutter\flutter
    • Framework revision 8af6b2f038 (9 days ago), 2020-06-30 12:53:55 -0700
    • Engine revision ee76268252
    • Dart version 2.8.4


[√] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
    • Android SDK at C:\Users\antho\AppData\Local\Android\sdk
    • Platform android-29, build-tools 29.0.3
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
    • All Android licenses accepted.

[√] Android Studio (version 3.6)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin version 47.1.1
    • Dart plugin version 192.8052
    • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)


[√] Connected device (1 available)
    • Android SDK built for x86 • emulator-5554 • android-x86 • Android 8.1.0 (API 27) (emulator)

• No issues found!

[VladyslavBondarenko]

Hi @PadreMontoya
could you provide your flutter run --verbose log?

[PadreMontoya]

Hi @PadreMontoya
could you provide your flutter run --verbose log?

Yes, thank you so much for your time. Hopefully this covers it. Also, as you'll notice, it runs very slow. I'm open to any ideas you might have, unless it's normal to take 10 minutes to boot the emulator.

PS C:\Users\antho\Documents\Flutter\test_app1\test_app1> flutter run --verbose
[  +20 ms] executing: [C:\Users\antho\Documents\Flutter\flutter/] git -c log.showSignature=false log -n 1 --pretty=format:%H
[  +53 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
[        ] 8af6b2f038c1172e61d418869363a28dffec3cb4
[        ] executing: [C:\Users\antho\Documents\Flutter\flutter/] git tag --contains HEAD
[ +174 ms] Exit code 0 from: git tag --contains HEAD
[   +1 ms] 1.17.5
[  +10 ms] executing: [C:\Users\antho\Documents\Flutter\flutter/] git rev-parse --abbrev-ref --symbolic @{u}
[  +34 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[        ] origin/stable
[        ] executing: [C:\Users\antho\Documents\Flutter\flutter/] git ls-remote --get-url origin
[  +31 ms] Exit code 0 from: git ls-remote --get-url origin
[   +1 ms] https://github.com/flutter/flutter.git
[  +85 ms] executing: [C:\Users\antho\Documents\Flutter\flutter/] git rev-parse --abbrev-ref HEAD
[  +36 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[   +1 ms] stable
[  +53 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[   +1 ms] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[   +6 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[   +1 ms] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[  +48 ms] executing: C:\Users\antho\AppData\Local\Android\sdk\platform-tools\adb.exe devices -l
[+18352 ms] List of devices attached
                     emulator-5554          device product:sdk_gphone_x86 model:Android_SDK_built_for_x86 device:generic_x86 transport_id:23
[  +14 ms] C:\Users\antho\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell getprop
[+33009 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[  +13 ms] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[   +1 ms] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[   +1 ms] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[   +6 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[   +1 ms] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[   +1 ms] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[ +273 ms] Generating C:\Users\antho\Documents\Flutter\test_app1\test_app1\android\app\src\main\java\io\flutter\plugins\GeneratedPluginRegistrant.java
[  +37 ms] ro.hardware = ranchu
[  +24 ms] Using hardware rendering with device Android SDK built for x86. If you get graphics artifacts, consider enabling software rendering with "--enable-software-rendering".
[  +18 ms] Launching lib\main.dart on Android SDK built for x86 in debug mode...
[   +8 ms] C:\Users\antho\Documents\Flutter\flutter\bin\cache\dart-sdk\bin\dart.exe C:\Users\antho\Documents\Flutter\flutter\bin\cache\artifacts\engine\windows-x64\frontend_server.dart.snapshot --sdk-root
C:\Users\antho\Documents\Flutter\flutter\bin\cache\artifacts\engine\common\flutter_patched_sdk/ --incremental --target=flutter --debugger-module-names -Ddart.developer.causal_async_stacks=true --output-dill
C:\Users\antho\AppData\Local\Temp\flutter_tool.f2a26237-c31a-11ea-ad08-00d86104d720\app.dill --packages C:\Users\antho\Documents\Flutter\test_app1\test_app1\.packages -Ddart.vm.profile=false -Ddart.vm.product=false
--bytecode-options=source-positions,local-var-info,debugger-stops,instance-field-initializers,keep-unreachable-code,avoid-closure-call-instructions --enable-asserts --track-widget-creation --filesystem-scheme org-dartlang-root
[  +17 ms] executing: C:\Users\antho\AppData\Local\Android\sdk\build-tools\29.0.3\aapt dump xmltree C:\Users\antho\Documents\Flutter\test_app1\test_app1\build\app\outputs\apk\app.apk AndroidManifest.xml
[  +55 ms] Exit code 0 from: C:\Users\antho\AppData\Local\Android\sdk\build-tools\29.0.3\aapt dump xmltree C:\Users\antho\Documents\Flutter\test_app1\test_app1\build\app\outputs\apk\app.apk AndroidManifest.xml
[   +1 ms] N: android=http://schemas.android.com/apk/res/android
             E: manifest (line=2)
               A: android:versionCode(0x0101021b)=(type 0x10)0x1
               A: android:versionName(0x0101021c)="1.0.0" (Raw: "1.0.0")
               A: android:compileSdkVersion(0x01010572)=(type 0x10)0x1c
               A: android:compileSdkVersionCodename(0x01010573)="9" (Raw: "9")
               A: package="com.test_app1" (Raw: "com.test_app1")
               A: platformBuildVersionCode=(type 0x10)0x1c
               A: platformBuildVersionName=(type 0x10)0x9
               E: uses-sdk (line=7)
                 A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10
                 A: android:targetSdkVersion(0x01010270)=(type 0x10)0x1c
               E: uses-permission (line=14)
                 A: android:name(0x01010003)="android.permission.INTERNET" (Raw: "android.permission.INTERNET")
               E: application (line=22)
                 A: android:label(0x01010001)="test_app1" (Raw: "test_app1")
                 A: android:icon(0x01010002)=@0x7f080000
                 A: android:name(0x01010003)="io.flutter.app.FlutterApplication" (Raw: "io.flutter.app.FlutterApplication")
                 A: android:debuggable(0x0101000f)=(type 0x12)0xffffffff
                 A: android:appComponentFactory(0x0101057a)="androidx.core.app.CoreComponentFactory" (Raw: "androidx.core.app.CoreComponentFactory")
                 E: activity (line=28)
                   A: android:theme(0x01010000)=@0x7f0a0000
                   A: android:name(0x01010003)="com.test_app1.MainActivity" (Raw: "com.test_app1.MainActivity")
                   A: android:launchMode(0x0101001d)=(type 0x10)0x1
                   A: android:configChanges(0x0101001f)=(type 0x11)0x40003fb4
                   A: android:windowSoftInputMode(0x0101022b)=(type 0x11)0x10
                   A: android:hardwareAccelerated(0x010102d3)=(type 0x12)0xffffffff
                   E: meta-data (line=42)
                     A: android:name(0x01010003)="io.flutter.embedding.android.NormalTheme" (Raw: "io.flutter.embedding.android.NormalTheme")
                     A: android:resource(0x01010025)=@0x7f0a0001
                   E: meta-data (line=52)
                     A: android:name(0x01010003)="io.flutter.embedding.android.SplashScreenDrawable" (Raw: "io.flutter.embedding.android.SplashScreenDrawable")
                     A: android:resource(0x01010025)=@0x7f040000
                   E: intent-filter (line=56)
                     E: action (line=57)
                       A: android:name(0x01010003)="android.intent.action.MAIN" (Raw: "android.intent.action.MAIN")
                     E: category (line=59)
                       A: android:name(0x01010003)="android.intent.category.LAUNCHER" (Raw: "android.intent.category.LAUNCHER")
                 E: meta-data (line=66)
                   A: android:name(0x01010003)="flutterEmbedding" (Raw: "flutterEmbedding")
                   A: android:value(0x01010024)=(type 0x10)0x2
[   +6 ms] executing: C:\Users\antho\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell -x logcat -v time -t 1
[+29548 ms] Exit code 0 from: C:\Users\antho\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell -x logcat -v time -t 1
[  +11 ms] --------- beginning of main
           07-10 22:05:33.399 I/WifiService( 1681): getSupportedFeatures uid=1000
[  +38 ms] <- compile package:test_app1/main.dart
[  +17 ms] executing: C:\Users\antho\AppData\Local\Android\sdk\platform-tools\adb.exe version
[  +33 ms] Android Debug Bridge version 1.0.41
           Version 30.0.1-6435776
           Installed as C:\Users\antho\AppData\Local\Android\sdk\platform-tools\adb.exe
[+6725 ms] executing: C:\Users\antho\AppData\Local\Android\sdk\platform-tools\adb.exe start-server
[+8182 ms] Building APK
[  +30 ms] Running Gradle task 'assembleDebug'...
[   +3 ms] gradle.properties already sets `android.enableR8`
[   +4 ms] Using gradle from C:\Users\antho\Documents\Flutter\test_app1\test_app1\android\gradlew.bat.
[   +1 ms] C:\Users\antho\Documents\Flutter\test_app1\test_app1\android\gradlew.bat mode: 33279 rwxrwxrwx.
[  +11 ms] executing: C:\Program Files\Android\Android Studio\jre\bin\java -version
[  +74 ms] Exit code 0 from: C:\Program Files\Android\Android Studio\jre\bin\java -version
[   +1 ms] openjdk version "1.8.0_212-release"
           OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
           OpenJDK 64-Bit Server VM (build 25.212-b04, mixed mode)
[   +2 ms] executing: [C:\Users\antho\Documents\Flutter\test_app1\test_app1\android/] C:\Users\antho\Documents\Flutter\test_app1\test_app1\android\gradlew.bat -Pverbose=true -Ptarget-platform=android-x86
-Ptarget=C:\Users\antho\Documents\Flutter\test_app1\test_app1\lib\main.dart -Ptrack-widget-creation=true -Pfilesystem-scheme=org-dartlang-root assembleDebug
[ +932 ms] Starting a Gradle Daemon, 1 busy Daemon could not be reused, use --status for details
[+8393 ms] > Task :app:compileFlutterBuildDebug
[   +2 ms] [  +14 ms] executing: [C:\Users\antho\Documents\Flutter\flutter/] git -c log.showSignature=false log -n 1 --pretty=format:%H
[        ] [  +53 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
[        ] [        ] 8af6b2f038c1172e61d418869363a28dffec3cb4
[        ] [        ] executing: [C:\Users\antho\Documents\Flutter\flutter/] git tag --contains HEAD
[        ] [ +174 ms] Exit code 0 from: git tag --contains HEAD
[        ] [        ] 1.17.5
[        ] [   +8 ms] executing: [C:\Users\antho\Documents\Flutter\flutter/] git rev-parse --abbrev-ref --symbolic @{u}
[        ] [  +37 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[        ] [        ] origin/stable
[        ] [        ] executing: [C:\Users\antho\Documents\Flutter\flutter/] git ls-remote --get-url origin
[        ] [  +33 ms] Exit code 0 from: git ls-remote --get-url origin
[        ] [        ] https://github.com/flutter/flutter.git
[        ] [  +76 ms] executing: [C:\Users\antho\Documents\Flutter\flutter/] git rev-parse --abbrev-ref HEAD
[        ] [  +39 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[        ] [        ] stable
[        ] [  +16 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[   +2 ms] [        ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[        ] [   +3 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[        ] [  +16 ms] Artifact Instance of 'MaterialFonts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'GradleWrapper' is not required, skipping update.
[        ] [        ] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[  +11 ms] [        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[        ] [        ] Artifact Instance of 'FlutterSdk' is not required, skipping update.
[        ] [        ] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[        ] [        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'FontSubsetArtifacts' is not required, skipping update.
[        ] [  +52 ms] Initializing file store
[        ] [  +12 ms] kernel_snapshot: Starting due to {}
[   +2 ms] [  +10 ms] C:\Users\antho\Documents\Flutter\flutter\bin\cache\dart-sdk\bin\dart.exe C:\Users\antho\Documents\Flutter\flutter\bin\cache\artifacts\engine\windows-x64\frontend_server.dart.snapshot --sdk-root
C:\Users\antho\Documents\Flutter\flutter\bin\cache\artifacts\engine\common\flutter_patched_sdk/ --target=flutter -Ddart.developer.causal_async_stacks=true -Ddart.vm.profile=false -Ddart.vm.product=false
--bytecode-options=source-positions,local-var-info,debugger-stops,instance-field-initializers,keep-unreachable-code,avoid-closure-call-instructions --enable-asserts --track-widget-creation --no-link-platform --packages
C:\Users\antho\Documents\Flutter\test_app1\test_app1\.packages --output-dill C:\Users\antho\Documents\Flutter\test_app1\test_app1\.dart_tool\flutter_build\e47731bfae433425ed6d05508ab2ae6d\app.dill --depfile
C:\Users\antho\Documents\Flutter\test_app1\test_app1\.dart_tool\flutter_build\e47731bfae433425ed6d05508ab2ae6d\kernel_snapshot.d package:test_app1/main.dart
[+3857 ms] [+4498 ms] kernel_snapshot: Complete
[+1099 ms] [+1140 ms] debug_android_application: Starting due to {}
[ +200 ms] [ +188 ms] debug_android_application: Complete
[ +301 ms] [ +339 ms] Persisting file store
[   +1 ms] [  +13 ms] Done persisting file store
[  +97 ms] [   +2 ms] build succeeded.
[   +1 ms] [  +13 ms] "flutter assemble" took 6,353ms.
[ +197 ms] > Task :app:packLibsflutterBuildDebug UP-TO-DATE
[   +2 ms] > Task :app:preBuild UP-TO-DATE
[        ] > Task :app:preDebugBuild UP-TO-DATE
[        ] > Task :app:checkDebugManifest UP-TO-DATE
[        ] > Task :app:generateDebugBuildConfig UP-TO-DATE
[        ] > Task :app:compileDebugAidl NO-SOURCE
[        ] > Task :app:compileDebugRenderscript NO-SOURCE
[        ] > Task :app:cleanMergeDebugAssets
[        ] > Task :app:mergeDebugShaders UP-TO-DATE
[        ] > Task :app:compileDebugShaders UP-TO-DATE
[        ] > Task :app:generateDebugAssets UP-TO-DATE
[  +94 ms] > Task :app:mergeDebugAssets
[ +198 ms] > Task :app:copyFlutterAssetsDebug
[   +1 ms] > Task :app:mainApkListPersistenceDebug UP-TO-DATE
[        ] > Task :app:generateDebugResValues UP-TO-DATE
[        ] > Task :app:generateDebugResources UP-TO-DATE
[        ] > Task :app:mergeDebugResources UP-TO-DATE
[  +97 ms] > Task :app:createDebugCompatibleScreenManifests UP-TO-DATE
[   +1 ms] > Task :app:processDebugManifest UP-TO-DATE
[        ] > Task :app:processDebugResources UP-TO-DATE
[ +198 ms] > Task :app:compileDebugKotlin UP-TO-DATE
[   +3 ms] > Task :app:javaPreCompileDebug UP-TO-DATE
[   +3 ms] > Task :app:compileDebugJavaWithJavac UP-TO-DATE
[        ] > Task :app:compileDebugSources UP-TO-DATE
[   +1 ms] > Task :app:processDebugJavaRes NO-SOURCE
[        ] > Task :app:mergeDebugJavaResource UP-TO-DATE
[  +87 ms] > Task :app:checkDebugDuplicateClasses UP-TO-DATE
[   +1 ms] > Task :app:desugarDebugFileDependencies UP-TO-DATE
[        ] > Task :app:mergeExtDexDebug UP-TO-DATE
[        ] > Task :app:transformClassesWithDexBuilderForDebug UP-TO-DATE
[        ] > Task :app:mergeDexDebug UP-TO-DATE
[        ] > Task :app:validateSigningDebug UP-TO-DATE
[        ] > Task :app:signingConfigWriterDebug UP-TO-DATE
[        ] > Task :app:mergeDebugJniLibFolders UP-TO-DATE
[        ] > Task :app:mergeDebugNativeLibs UP-TO-DATE
[  +97 ms] > Task :app:stripDebugDebugSymbols UP-TO-DATE
[   +1 ms] Compatible side by side NDK version was not found.
[        ] > Task :app:packageDebug UP-TO-DATE
[  +93 ms] > Task :app:assembleDebug
[   +1 ms] BUILD SUCCESSFUL in 15s
[        ] 31 actionable tasks: 5 executed, 26 up-to-date
[ +373 ms] Running Gradle task 'assembleDebug'... (completed in 16.5s)
[  +27 ms] calculateSha: LocalDirectory: 'C:\Users\antho\Documents\Flutter\test_app1\test_app1\build\app\outputs\apk'/app.apk
[  +36 ms] calculateSha: reading file took 34us
[ +372 ms] calculateSha: computing sha took 370us
[   +8 ms] √ Built build\app\outputs\apk\debug\app-debug.apk.
[   +3 ms] executing: C:\Users\antho\AppData\Local\Android\sdk\build-tools\29.0.3\aapt dump xmltree C:\Users\antho\Documents\Flutter\test_app1\test_app1\build\app\outputs\apk\app.apk AndroidManifest.xml
[  +15 ms] Exit code 0 from: C:\Users\antho\AppData\Local\Android\sdk\build-tools\29.0.3\aapt dump xmltree C:\Users\antho\Documents\Flutter\test_app1\test_app1\build\app\outputs\apk\app.apk AndroidManifest.xml
[        ] N: android=http://schemas.android.com/apk/res/android
             E: manifest (line=2)
               A: android:versionCode(0x0101021b)=(type 0x10)0x1
               A: android:versionName(0x0101021c)="1.0.0" (Raw: "1.0.0")
               A: android:compileSdkVersion(0x01010572)=(type 0x10)0x1c
               A: android:compileSdkVersionCodename(0x01010573)="9" (Raw: "9")
               A: package="com.test_app1" (Raw: "com.test_app1")
               A: platformBuildVersionCode=(type 0x10)0x1c
               A: platformBuildVersionName=(type 0x10)0x9
               E: uses-sdk (line=7)
                 A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10
                 A: android:targetSdkVersion(0x01010270)=(type 0x10)0x1c
               E: uses-permission (line=14)
                 A: android:name(0x01010003)="android.permission.INTERNET" (Raw: "android.permission.INTERNET")
               E: application (line=22)
                 A: android:label(0x01010001)="test_app1" (Raw: "test_app1")
                 A: android:icon(0x01010002)=@0x7f080000
                 A: android:name(0x01010003)="io.flutter.app.FlutterApplication" (Raw: "io.flutter.app.FlutterApplication")
                 A: android:debuggable(0x0101000f)=(type 0x12)0xffffffff
                 A: android:appComponentFactory(0x0101057a)="androidx.core.app.CoreComponentFactory" (Raw: "androidx.core.app.CoreComponentFactory")
                 E: activity (line=28)
                   A: android:theme(0x01010000)=@0x7f0a0000
                   A: android:name(0x01010003)="com.test_app1.MainActivity" (Raw: "com.test_app1.MainActivity")
                   A: android:launchMode(0x0101001d)=(type 0x10)0x1
                   A: android:configChanges(0x0101001f)=(type 0x11)0x40003fb4
                   A: android:windowSoftInputMode(0x0101022b)=(type 0x11)0x10
                   A: android:hardwareAccelerated(0x010102d3)=(type 0x12)0xffffffff
                   E: meta-data (line=42)
                     A: android:name(0x01010003)="io.flutter.embedding.android.NormalTheme" (Raw: "io.flutter.embedding.android.NormalTheme")
                     A: android:resource(0x01010025)=@0x7f0a0001
                   E: meta-data (line=52)
                     A: android:name(0x01010003)="io.flutter.embedding.android.SplashScreenDrawable" (Raw: "io.flutter.embedding.android.SplashScreenDrawable")
                     A: android:resource(0x01010025)=@0x7f040000
                   E: intent-filter (line=56)
                     E: action (line=57)
                       A: android:name(0x01010003)="android.intent.action.MAIN" (Raw: "android.intent.action.MAIN")
                     E: category (line=59)
                       A: android:name(0x01010003)="android.intent.category.LAUNCHER" (Raw: "android.intent.category.LAUNCHER")
                 E: meta-data (line=66)
                   A: android:name(0x01010003)="flutterEmbedding" (Raw: "flutterEmbedding")
                   A: android:value(0x01010024)=(type 0x10)0x2
[   +4 ms] Stopping app 'app.apk' on Android SDK built for x86.
[   +1 ms] executing: C:\Users\antho\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell am force-stop com.test_app1
[+28034 ms] executing: C:\Users\antho\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell pm list packages com.test_app1
[+36055 ms] package:com.test_app1
[+5483 ms] executing: C:\Users\antho\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell cat /data/local/tmp/sky.com.test_app1.sha1
[+30543 ms] 290f71b5368719d811222e700ffc6c5788f561b3
[   +2 ms] Latest build already installed.
[        ] Android SDK built for x86 startApp
[   +4 ms] executing: C:\Users\antho\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell am start -a android.intent.action.RUN -f 0x20000000 --ez enable-background-compilation true --ez enable-dart-profiling true --ez
enable-checked-mode true --ez verify-entry-points true com.test_app1/com.test_app1.MainActivity
[+30026 ms] Starting: Intent { act=android.intent.action.RUN flg=0x20000000 cmp=com.test_app1/.MainActivity (has extras) }
[   +1 ms] Waiting for observatory port to be available...
[+3216 ms] Observatory URL on device: http://127.0.0.1:33741/6tb7Yx6dzDE=/
[   +8 ms] executing: C:\Users\antho\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 forward tcp:0 tcp:33741
[+20799 ms] 61076
[   +1 ms] Forwarded host port 61076 to device port 33741 for Observatory
[   +7 ms] Connecting to service protocol: http://127.0.0.1:61076/6tb7Yx6dzDE=/
[+18006 ms] Successfully connected to service protocol: http://127.0.0.1:61076/6tb7Yx6dzDE=/
[   +6 ms] Sending to VM service: getVM({})
[+6000 ms] Result: {type: VM, name: vm, architectureBits: 32, hostCPU: Virtual CPU, operatingSystem: android, targetCPU: ia32, version: 2.8.4 (stable) (Wed Jun 3 12:26:04 2020 +0200) on "android_ia32", _profilerMode: VM,
_nativeZoneMemoryUsage: 0, pid: 7019, startTi...
[  +25 ms] Sending to VM service: getIsolate({isolateId: isolates/3990646939595659})
[  +14 ms] Sending to VM service: _flutter.listViews({})
[+5958 ms] Result: {type: FlutterViewList, views: [{type: FlutterView, id: _flutterView/0xdeccb390, isolate: {type: @Isolate, fixedId: true, id: isolates/3990646939595659, name: main.dart$main-3990646939595659, number:
3990646939595659}}]}
[  +23 ms] DevFS: Creating new filesystem on the device (null)
[   +6 ms] Sending to VM service: _createDevFS({fsName: test_app1})
[+3016 ms] Result: {type: Isolate, id: isolates/3990646939595659, name: main, number: 3990646939595659, _originNumber: 3990646939595659, startTime: 1594433299136, _heaps: {new: {type: HeapSpace, name: new, vmName: Scavenger, collections:
4, avgCollectionPeriodMillis...
[+5958 ms] Result: {type: FileSystem, name: test_app1, uri: file:///data/user/0/com.test_app1/code_cache/test_app1JXOCKY/test_app1/}
[   +5 ms] DevFS: Created new filesystem on the device (file:///data/user/0/com.test_app1/code_cache/test_app1JXOCKY/test_app1/)
[   +7 ms] Updating assets
[ +105 ms] Syncing files to device Android SDK built for x86...
[   +2 ms] Scanning asset files
[   +2 ms] <- reset
[        ] Compiling dart to kernel with 0 updated files
[   +1 ms] <- recompile package:test_app1/main.dart 2f1ea6db-db3c-4e59-a339-46af7f1eea29
[        ] <- 2f1ea6db-db3c-4e59-a339-46af7f1eea29
[  +77 ms] Updating files
[+20814 ms] DevFS: Sync finished
[   +7 ms] Syncing files to device Android SDK built for x86... (completed in 20,901ms, longer than expected)
[   +3 ms] Synced 0.9MB.
[   +8 ms] Sending to VM service: _flutter.listViews({})
[+5983 ms] Result: {type: FlutterViewList, views: [{type: FlutterView, id: _flutterView/0xdeccb390, isolate: {type: @Isolate, fixedId: true, id: isolates/3990646939595659, name: main.dart$main-3990646939595659, number:
3990646939595659}}]}
[   +7 ms] <- accept
[   +1 ms] Connected to _flutterView/0xdeccb390.
[   +8 ms] Flutter run key commands.
[   +7 ms] r Hot reload.
[   +6 ms] R Hot restart.
[   +3 ms] h Repeat this help message.
[   +6 ms] d Detach (terminate "flutter run" but leave application running).
[   +3 ms] c Clear the screen
[   +3 ms] q Quit (terminate the application on the device).
[   +6 ms] An Observatory debugger and profiler on Android SDK built for x86 is available at: http://127.0.0.1:61076/6tb7Yx6dzDE=/

[PadreMontoya]

Note: The above command did boot the app into the emulator successfully. Android Studio must be doing something slightly different. Also, doing a hot reload took almost a full minute. I've seen it run faster a while back when I first installed Flutter. (But maybe I was using Chrome)

[+631409 ms] Performing hot reload...
[  +11 ms] Refreshing active FlutterViews before reloading.
[   +3 ms] Sending to VM service: getVM({})
[+4929 ms] Result: {type: VM, name: vm, architectureBits: 32, hostCPU: Virtual CPU, operatingSystem: android, targetCPU: ia32, version: 2.8.4 (stable) (Wed Jun 3 12:26:04 2020 +0200) on "android_ia32", _profilerMode: VM,
_nativeZoneMemoryUsage: 0, pid: 7019, startTi...
[   +8 ms] Sending to VM service: _flutter.listViews({})
[+5995 ms] Result: {type: FlutterViewList, views: [{type: FlutterView, id: _flutterView/0xdeccb390, isolate: {type: @Isolate, fixedId: true, id: isolates/3990646939595659, name: main.dart$main-3990646939595659, number:
3990646939595659}}]}
[  +92 ms] Scanned through 470 files in 84ms
[   +1 ms] Syncing files to device Android SDK built for x86...
[        ] Scanning asset files
[        ] Compiling dart to kernel with 1 updated files
[   +1 ms] <- recompile package:test_app1/main.dart 1ae8bb22-df81-47dc-a774-122764f0ab5b
[        ] package:test_app1/main.dart
[        ] <- 1ae8bb22-df81-47dc-a774-122764f0ab5b
[  +24 ms] Updating files
[+8885 ms] DevFS: Sync finished
[   +4 ms] Syncing files to device Android SDK built for x86... (completed in 8,917ms, longer than expected)
[   +1 ms] Synced 0.0MB.
[   +9 ms] Sending to VM service: _flutter.setAssetBundlePath({isolateId: isolates/3990646939595659, viewId: _flutterView/0xdeccb390, assetDirectory: /data/user/0/com.test_app1/code_cache/test_app1JXOCKY/test_app1/build/flutter_assets})
[+8990 ms] Result: {type: Success, view: {type: FlutterView, id: _flutterView/0xdeccb390, isolate: {type: @Isolate, fixedId: true, id: isolates/3990646939595659, name: main.dart$main-3990646939595659, number: 3990646939595659}}}
[   +8 ms] Sending to VM service: _reloadSources({pause: false, rootLibUri: file:///data/user/0/com.test_app1/code_cache/test_app1JXOCKY/test_app1/lib/main.dart.incremental.dill, isolateId: isolates/3990646939595659})
[+5996 ms] Result: {type: ReloadReport, success: true, details: {finalLibraryCount: 495, receivedLibraryCount: 1, receivedLibrariesBytes: 9480, receivedClassesCount: 6, receivedProceduresCount: 2, savedLibraryCount: 494,
loadedLibraryCount: 1, shapeChangeMappings: []}}
[  +10 ms] <- accept
[   +3 ms] reloaded 1 of 495 libraries
[   +4 ms] Sending reload events to Android SDK built for x86
[   +1 ms] Sending reload event to "main.dart$main-3990646939595659"
[   +1 ms] Sending to VM service: getIsolate({isolateId: isolates/3990646939595659})
[+9001 ms] Result: {type: Isolate, id: isolates/3990646939595659, name: main, number: 3990646939595659, _originNumber: 3990646939595659, startTime: 1594433299136, _heaps: {new: {type: HeapSpace, name: new, vmName: Scavenger, collections:
5, avgCollectionPeriodMillis...
[  +41 ms] Sending to VM service: _flutter.listViews({})
[+5946 ms] Result: {type: FlutterViewList, views: [{type: FlutterView, id: _flutterView/0xdeccb390, isolate: {type: @Isolate, fixedId: true, id: isolates/3990646939595659, name: main.dart$main-3990646939595659, number:
3990646939595659}}]}
[   +7 ms] Evicting dirty assets
[   +3 ms] Reassembling application
[   +5 ms] Sending to VM service: ext.flutter.reassemble({isolateId: isolates/3990646939595659})
[+2006 ms] This is taking a long time; will now check for paused isolates.
[   +5 ms] Sending to VM service: getIsolate({isolateId: isolates/3990646939595659})
[+3990 ms] Result: {type: Isolate, id: isolates/3990646939595659, name: main, number: 3990646939595659, _originNumber: 3990646939595659, startTime: 1594433299136, _heaps: {new: {type: HeapSpace, name: new, vmName: Scavenger, collections:
5, avgCollectionPeriodMillis...
[  +30 ms] Found 0 newly paused isolate(s).
[+2956 ms] Result: {type: _extensionType, method: ext.flutter.reassemble}
[  +12 ms] Hot reload performed in 58,982ms.
[   +3 ms] Performing hot reload... (completed in 58,998ms, longer than expected)
[   +2 ms] Reloaded 1 of 495 libraries in 59,007ms.

[VladyslavBondarenko]

@PadreMontoya
does the issue Failed to connect to the VM observatory service still appears?
I can't see it in your logs.
consider to open a separate issue about speed when running with android emulator

[TahaTesser]

Without additional information we are unfortunately not sure how to resolve this issue.
We are therefore reluctantly going to close this bug for now.
Please don't hesitate to comment on the bug if you have any more information for us; we will reopen it right away!
Thanks for your contribution.

[PedroFerraresi]

hi guys!
im having the same issue here.

So, my first question is: Do I open a new issue or you guys will reopen this one?

I was teaching my students how to install Flutter on windows environment and after I installed Android Studio and created a new flutter project through it. After that I created a new virtual device and started it. Then I tried to run the app on the virtual device and the same issue happens:

Launching lib\main.dart on AOSP on IA Emulator in debug mode...
Running Gradle task 'assembleDebug'...
√ Built build\app\outputs\flutter-apk\app-debug.apk.
Waiting for AOSP on IA Emulator to report its views...
Debug service listening on ws://127.0.0.1:50441/Ln6FaCqUm_Q=/ws
Syncing files to device AOSP on IA Emulator...
Incompatible protocol version: client=3.26 vm=4.0
Failed to connect to the VM observatory service at: ws://127.0.0.1:50441/Ln6FaCqUm_Q=/ws
java.io.IOException: Incompatible protocol version: client=3.26 vm=4.0

My Flutter version is (I'm on master only for academic pourposes):

Flutter is already up to date on channel master
Flutter 1.22.0-10.0.pre.105 • channel master • https://github.com/flutter/flutter.git
Framework • revision 38834d36d3 (2 hours ago) • 2020-09-09 00:47:17 +0100
Engine • revision d1d848e842
Tools • Dart 2.10.0 (build 2.10.0-98.0.dev)

My flutter doctor -v:

[√] Flutter (Channel master, 1.22.0-10.0.pre.105, on Microsoft Windows [versão 10.0.19041.450], locale pt-BR)
    • Flutter version 1.22.0-10.0.pre.105 at C:\flutter
    • Framework revision 38834d36d3 (2 hours ago), 2020-09-09 00:47:17 +0100
    • Engine revision d1d848e842
    • Dart version 2.10.0 (build 2.10.0-98.0.dev)


[√] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
    • Android SDK at C:\Users\Pedro\AppData\Local\Android\sdk
    • Platform android-30, build-tools 30.0.2
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
    • All Android licenses accepted.

[√] Chrome - develop for the web
    • Chrome at C:\Program Files (x86)\Google\Chrome\Application\chrome.exe

[√] Android Studio (version 4.0)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin version 49.0.2
    • Dart plugin version 193.7547
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)

[√] VS Code (version 1.48.2)
    • VS Code at C:\Users\Pedro\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.13.2

[√] Connected device (4 available)
    • AOSP on IA Emulator (mobile) • emulator-5554 • android-x86    • Android 9 (API 28) (emulator)
    • Web Server (web)             • web-server    • web-javascript • Flutter Tools
    • Chrome (web)                 • chrome        • web-javascript • Google Chrome 85.0.4183.102
    • Edge (web)                   • edge          • web-javascript • Microsoft Edge 85.0.564.44

• No issues found!

My flutter run --verbose log is:

[ +106 ms] executing: [C:\flutter/] git -c log.showSignature=false log -n 1 --pretty=format:%H
[  +59 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
[        ] 38834d36d3320fce0f43ef7df29846b0d073fd6f
[        ] executing: [C:\flutter/] git tag --points-at HEAD
[  +41 ms] Exit code 0 from: git tag --points-at HEAD
[   +1 ms] executing: [C:\flutter/] git describe --match *.*.* --first-parent --long --tags
[  +55 ms] Exit code 0 from: git describe --match *.*.* --first-parent --long --tags
[        ] 1.22.0-9.0.pre-105-g38834d36d
[   +7 ms] executing: [C:\flutter/] git rev-parse --abbrev-ref --symbolic @{u}
[  +35 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[        ] origin/master
[        ] executing: [C:\flutter/] git ls-remote --get-url origin
[  +29 ms] Exit code 0 from: git ls-remote --get-url origin
[        ] https://github.com/flutter/flutter.git
[  +59 ms] executing: [C:\flutter/] git rev-parse --abbrev-ref HEAD
[  +32 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[        ] master
[  +54 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[   +3 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[  +18 ms] executing: C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe devices -l
[+1415 ms] List of devices attached
                    emulator-5554          device product:sdk_gphone_x86_arm model:AOSP_on_IA_Emulator device:generic_x86_arm transport_id:1
[   +6 ms] C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell getprop
[+1421 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[   +4 ms] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[   +3 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[ +195 ms] Generating C:\Users\Pedro\Documents\Projetos\flutter\etec\flutter_app\android\app\src\main\java\io\flutter\plugins\GeneratedPluginRegistrant.java
[  +22 ms] ro.hardware = ranchu
[  +21 ms] Using hardware rendering with device AOSP on IA Emulator. If you notice graphics artifacts, consider enabling software rendering with "--enable-software-rendering".
[  +17 ms] Starting incremental build...
[   +4 ms] Initializing file store
[   +8 ms] Skipping target: gen_localizations
[   +8 ms] complete
[   +4 ms] Launching lib\main.dart on AOSP on IA Emulator in debug mode...
[   +5 ms] C:\flutter\bin\cache\dart-sdk\bin\dart.exe --disable-dart-dev C:\flutter\bin\cache\artifacts\engine\windows-x64\frontend_server.dart.snapshot --sdk-root
C:\flutter\bin\cache\artifacts\engine\common\flutter_patched_sdk/ --incremental --target=flutter --debugger-module-names --experimental-emit-debug-metadata -Ddart.developer.causal_async_stacks=true
--output-dill C:\Users\Pedro\AppData\Local\Temp\flutter_tools.ba419196\flutter_tool.6c7bb8af\app.dill --packages .packages -Ddart.vm.profile=false -Ddart.vm.product=false
--bytecode-options=source-positions,local-var-info,debugger-stops,instance-field-initializers,keep-unreachable-code,avoid-closure-call-instructions --enable-asserts --track-widget-creation
--filesystem-scheme org-dartlang-root --initialize-from-dill build\cache.dill.track.dill
[  +14 ms] executing: C:\Users\Pedro\AppData\Local\Android\sdk\build-tools\30.0.2\aapt dump xmltree C:\Users\Pedro\Documents\Projetos\flutter\etec\flutter_app\build\app\outputs\flutter-apk\app.apk
AndroidManifest.xml
[  +29 ms] Exit code 0 from: C:\Users\Pedro\AppData\Local\Android\sdk\build-tools\30.0.2\aapt dump xmltree C:\Users\Pedro\Documents\Projetos\flutter\etec\flutter_app\build\app\outputs\flutter-apk\app.apk
AndroidManifest.xml
[   +1 ms] N: android=http://schemas.android.com/apk/res/android
             E: manifest (line=2)
               A: android:versionCode(0x0101021b)=(type 0x10)0x1
               A: android:versionName(0x0101021c)="1.0.0" (Raw: "1.0.0")
               A: android:compileSdkVersion(0x01010572)=(type 0x10)0x1d
               A: android:compileSdkVersionCodename(0x01010573)="10" (Raw: "10")
               A: package="com.example.flutter_app" (Raw: "com.example.flutter_app")
               A: platformBuildVersionCode=(type 0x10)0x1d
               A: platformBuildVersionName=(type 0x10)0xa
               E: uses-sdk (line=7)
                 A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10
                 A: android:targetSdkVersion(0x01010270)=(type 0x10)0x1d
               E: uses-permission (line=14)
                 A: android:name(0x01010003)="android.permission.INTERNET" (Raw: "android.permission.INTERNET")
               E: application (line=22)
                 A: android:label(0x01010001)="flutter_app" (Raw: "flutter_app")
                 A: android:icon(0x01010002)=@0x7f080000
                 A: android:name(0x01010003)="io.flutter.app.FlutterApplication" (Raw: "io.flutter.app.FlutterApplication")
                 A: android:debuggable(0x0101000f)=(type 0x12)0xffffffff
                 A: android:appComponentFactory(0x0101057a)="androidx.core.app.CoreComponentFactory" (Raw: "androidx.core.app.CoreComponentFactory")
                 E: activity (line=28)
                   A: android:theme(0x01010000)=@0x7f0a0000
                   A: android:name(0x01010003)="com.example.flutter_app.MainActivity" (Raw: "com.example.flutter_app.MainActivity")
                   A: android:launchMode(0x0101001d)=(type 0x10)0x1
                   A: android:configChanges(0x0101001f)=(type 0x11)0x40003fb4
                   A: android:windowSoftInputMode(0x0101022b)=(type 0x11)0x10
                   A: android:hardwareAccelerated(0x010102d3)=(type 0x12)0xffffffff
                   E: meta-data (line=42)
                     A: android:name(0x01010003)="io.flutter.embedding.android.NormalTheme" (Raw: "io.flutter.embedding.android.NormalTheme")
                     A: android:resource(0x01010025)=@0x7f0a0001
                   E: meta-data (line=52)
                     A: android:name(0x01010003)="io.flutter.embedding.android.SplashScreenDrawable" (Raw: "io.flutter.embedding.android.SplashScreenDrawable")
                     A: android:resource(0x01010025)=@0x7f040000
                   E: intent-filter (line=56)
                     E: action (line=57)
                       A: android:name(0x01010003)="android.intent.action.MAIN" (Raw: "android.intent.action.MAIN")
                     E: category (line=59)
                       A: android:name(0x01010003)="android.intent.category.LAUNCHER" (Raw: "android.intent.category.LAUNCHER")
                 E: meta-data (line=66)
                   A: android:name(0x01010003)="flutterEmbedding" (Raw: "flutterEmbedding")
                   A: android:value(0x01010024)=(type 0x10)0x2
[   +6 ms] executing: C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell -x logcat -v time -t 1
[ +496 ms] Exit code 0 from: C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell -x logcat -v time -t 1
[        ] --------- beginning of main
           09-09 01:43:38.184 I/GnssLocationProvider( 1877): WakeLock released by handleMessage(REPORT_SV_STATUS, 0, com.android.server.location.GnssLocationProvider$SvStatusInfo@dd7ecca)
[   +2 ms] executing: C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell -x logcat -v time -t 1
[ +492 ms] Exit code 0 from: C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell -x logcat -v time -t 1
[        ] --------- beginning of main
           09-09 01:43:38.184 I/GnssLocationProvider( 1877): WakeLock released by handleMessage(REPORT_SV_STATUS, 0, com.android.server.location.GnssLocationProvider$SvStatusInfo@dd7ecca)
[  +22 ms] <- compile package:flutter_app/main.dart
[ +485 ms] executing: C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe version
[ +504 ms] Android Debug Bridge version 1.0.41
                    Version 30.0.4-6686687
                    Installed as C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe
[   +2 ms] executing: C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe start-server
[ +519 ms] Building APK
[  +17 ms] Running Gradle task 'assembleDebug'...
[   +2 ms] gradle.properties already sets `android.enableR8`
[   +4 ms] Using gradle from C:\Users\Pedro\Documents\Projetos\flutter\etec\flutter_app\android\gradlew.bat.
[   +1 ms] C:\Users\Pedro\Documents\Projetos\flutter\etec\flutter_app\android\gradlew.bat mode: 33279 rwxrwxrwx.
[  +10 ms] executing: C:\Program Files\Android\Android Studio\jre\bin\java -version
[  +96 ms] Exit code 0 from: C:\Program Files\Android\Android Studio\jre\bin\java -version
[        ] openjdk version "1.8.0_242-release"
           OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
           OpenJDK 64-Bit Server VM (build 25.242-b01, mixed mode)
[   +3 ms] executing: [C:\Users\Pedro\Documents\Projetos\flutter\etec\flutter_app\android/] C:\Users\Pedro\Documents\Projetos\flutter\etec\flutter_app\android\gradlew.bat -Pverbose=true
-Ptarget-platform=android-x86 -Ptarget=C:\Users\Pedro\Documents\Projetos\flutter\etec\flutter_app\lib\main.dart -Ptrack-widget-creation=true -Pfilesystem-scheme=org-dartlang-root assembleDebug
[+3500 ms] > Task :app:compileFlutterBuildDebug
[   +1 ms] [ +112 ms] executing: [C:\flutter/] git -c log.showSignature=false log -n 1 --pretty=format:%H
[        ] [  +66 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
[   +1 ms] [        ] 38834d36d3320fce0f43ef7df29846b0d073fd6f
[   +1 ms] [        ] executing: [C:\flutter/] git tag --points-at HEAD
[   +2 ms] [  +49 ms] Exit code 0 from: git tag --points-at HEAD
[   +2 ms] [   +1 ms] executing: [C:\flutter/] git describe --match *.*.* --first-parent --long --tags
[   +1 ms] [  +63 ms] Exit code 0 from: git describe --match *.*.* --first-parent --long --tags
[   +1 ms] [        ] 1.22.0-9.0.pre-105-g38834d36d
[        ] [  +10 ms] executing: [C:\flutter/] git rev-parse --abbrev-ref --symbolic @{u}
[   +1 ms] [  +37 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[        ] [        ] origin/master
[   +1 ms] [        ] executing: [C:\flutter/] git ls-remote --get-url origin
[   +1 ms] [  +36 ms] Exit code 0 from: git ls-remote --get-url origin
[   +1 ms] [        ] https://github.com/flutter/flutter.git
[   +2 ms] [  +70 ms] executing: [C:\flutter/] git rev-parse --abbrev-ref HEAD
[   +1 ms] [  +39 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[   +1 ms] [        ] master
[   +1 ms] [  +32 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[   +1 ms] [        ] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[   +1 ms] [        ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[   +1 ms] [        ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[   +1 ms] [   +3 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[   +1 ms] [        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[   +3 ms] [        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[   +2 ms] [        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[   +1 ms] [        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[   +1 ms] [        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[   +1 ms] [  +15 ms] Artifact Instance of 'MaterialFonts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'GradleWrapper' is not required, skipping update.
[        ] [        ] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[   +1 ms] [        ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[   +1 ms] [        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[   +2 ms] [        ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[   +3 ms] [        ] Artifact Instance of 'FlutterSdk' is not required, skipping update.
[   +2 ms] [        ] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[   +1 ms] [        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[   +1 ms] [        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[        ] [   +4 ms] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[        ] [        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[   +1 ms] [        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[        ] [        ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[   +1 ms] [        ] Artifact Instance of 'FontSubsetArtifacts' is not required, skipping update.
[   +1 ms] [  +75 ms] Initializing file store
[   +1 ms] [  +16 ms] Done initializing file store
[   +1 ms] [  +43 ms] Skipping target: gen_localizations
[ +512 ms] [ +670 ms] kernel_snapshot: Starting due to {InvalidatedReason.inputChanged}
[   +1 ms] [  +20 ms] C:\flutter\bin\cache\dart-sdk\bin\dart.exe --disable-dart-dev C:\flutter\bin\cache\artifacts\engine\windows-x64\frontend_server.dart.snapshot --sdk-root
C:\flutter\bin\cache\artifacts\engine\common\flutter_patched_sdk/ --target=flutter -Ddart.developer.causal_async_stacks=true -Ddart.vm.profile=false -Ddart.vm.product=false
--bytecode-options=source-positions,local-var-info,debugger-stops,instance-field-initializers,keep-unreachable-code,avoid-closure-call-instructions --enable-asserts --track-widget-creation
--no-link-platform --packages C:\Users\Pedro\Documents\Projetos\flutter\etec\flutter_app\.packages --output-dill
C:\Users\Pedro\Documents\Projetos\flutter\etec\flutter_app\.dart_tool\flutter_build\4413cc87ca1ad614fc38e6f51d067805\app.dill --depfile
C:\Users\Pedro\Documents\Projetos\flutter\etec\flutter_app\.dart_tool\flutter_build\4413cc87ca1ad614fc38e6f51d067805\kernel_snapshot.d package:flutter_app/main.dart
[+6108 ms] [+6132 ms] kernel_snapshot: Complete
[ +591 ms] [ +601 ms] debug_android_application: Starting due to {InvalidatedReason.inputChanged}
[ +202 ms] [ +130 ms] debug_android_application: Complete
[ +298 ms] [ +298 ms] Persisting file store
[   +2 ms] [   +9 ms] Done persisting file store
[   +1 ms] [   +8 ms] build succeeded.
[   +1 ms] [  +11 ms] "flutter assemble" took 8.053ms.
[   +1 ms] [   +3 ms] ensureAnalyticsSent: 0ms
[   +1 ms] [   +1 ms] Running shutdown hooks
[   +1 ms] [        ] Shutdown hooks complete
[   +1 ms] [        ] exiting with code 0
[ +191 ms] > Task :app:packLibsflutterBuildDebug UP-TO-DATE
[        ] > Task :app:preBuild UP-TO-DATE
[        ] > Task :app:preDebugBuild UP-TO-DATE
[        ] > Task :app:checkDebugManifest UP-TO-DATE
[        ] > Task :app:generateDebugBuildConfig UP-TO-DATE
[        ] > Task :app:compileDebugRenderscript NO-SOURCE
[        ] > Task :app:compileDebugAidl NO-SOURCE
[        ] > Task :app:cleanMergeDebugAssets
[        ] > Task :app:mergeDebugShaders UP-TO-DATE
[        ] > Task :app:compileDebugShaders UP-TO-DATE
[        ] > Task :app:generateDebugAssets UP-TO-DATE
[        ] > Task :app:mergeDebugAssets
[ +292 ms] > Task :app:copyFlutterAssetsDebug
[   +1 ms] > Task :app:mainApkListPersistenceDebug UP-TO-DATE
[        ] > Task :app:generateDebugResValues UP-TO-DATE
[        ] > Task :app:generateDebugResources UP-TO-DATE
[        ] > Task :app:mergeDebugResources UP-TO-DATE
[        ] > Task :app:createDebugCompatibleScreenManifests UP-TO-DATE
[ +107 ms] > Task :app:processDebugManifest UP-TO-DATE
[   +1 ms] > Task :app:processDebugResources UP-TO-DATE
[        ] > Task :app:compileDebugKotlin UP-TO-DATE
[        ] > Task :app:javaPreCompileDebug UP-TO-DATE
[        ] > Task :app:compileDebugJavaWithJavac UP-TO-DATE
[        ] > Task :app:compileDebugSources UP-TO-DATE
[        ] > Task :app:processDebugJavaRes NO-SOURCE
[        ] > Task :app:mergeDebugJavaResource UP-TO-DATE
[        ] > Task :app:checkDebugDuplicateClasses UP-TO-DATE
[   +1 ms] > Task :app:desugarDebugFileDependencies UP-TO-DATE
[        ] > Task :app:transformClassesWithDexBuilderForDebug UP-TO-DATE
[        ] > Task :app:mergeExtDexDebug UP-TO-DATE
[  +87 ms] > Task :app:mergeDexDebug UP-TO-DATE
[   +1 ms] > Task :app:validateSigningDebug UP-TO-DATE
[   +1 ms] > Task :app:signingConfigWriterDebug UP-TO-DATE
[        ] > Task :app:mergeDebugJniLibFolders UP-TO-DATE
[        ] > Task :app:mergeDebugNativeLibs UP-TO-DATE
[        ] > Task :app:stripDebugDebugSymbols UP-TO-DATE
[        ] Compatible side by side NDK version was not found.
[+1195 ms] > Task :app:packageDebug
[ +151 ms] > Task :app:assembleDebug
[   +1 ms] BUILD SUCCESSFUL in 13s
[        ] 31 actionable tasks: 6 executed, 25 up-to-date
[ +536 ms] Running Gradle task 'assembleDebug'... (completed in 14,0s)
[  +25 ms] calculateSha: LocalDirectory: 'C:\Users\Pedro\Documents\Projetos\flutter\etec\flutter_app\build\app\outputs\flutter-apk'/app.apk
[  +32 ms] calculateSha: reading file took 31us
[ +388 ms] calculateSha: computing sha took 386us
[   +6 ms] √ Built build\app\outputs\flutter-apk\app-debug.apk.
[   +4 ms] executing: C:\Users\Pedro\AppData\Local\Android\sdk\build-tools\30.0.2\aapt dump xmltree C:\Users\Pedro\Documents\Projetos\flutter\etec\flutter_app\build\app\outputs\flutter-apk\app.apk
AndroidManifest.xml
[  +17 ms] Exit code 0 from: C:\Users\Pedro\AppData\Local\Android\sdk\build-tools\30.0.2\aapt dump xmltree C:\Users\Pedro\Documents\Projetos\flutter\etec\flutter_app\build\app\outputs\flutter-apk\app.apk
AndroidManifest.xml
[   +1 ms] N: android=http://schemas.android.com/apk/res/android
             E: manifest (line=2)
               A: android:versionCode(0x0101021b)=(type 0x10)0x1
               A: android:versionName(0x0101021c)="1.0.0" (Raw: "1.0.0")
               A: android:compileSdkVersion(0x01010572)=(type 0x10)0x1d
               A: android:compileSdkVersionCodename(0x01010573)="10" (Raw: "10")
               A: package="com.example.flutter_app" (Raw: "com.example.flutter_app")
               A: platformBuildVersionCode=(type 0x10)0x1d
               A: platformBuildVersionName=(type 0x10)0xa
               E: uses-sdk (line=7)
                 A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10
                 A: android:targetSdkVersion(0x01010270)=(type 0x10)0x1d
               E: uses-permission (line=14)
                 A: android:name(0x01010003)="android.permission.INTERNET" (Raw: "android.permission.INTERNET")
               E: application (line=22)
                 A: android:label(0x01010001)="flutter_app" (Raw: "flutter_app")
                 A: android:icon(0x01010002)=@0x7f080000
                 A: android:name(0x01010003)="io.flutter.app.FlutterApplication" (Raw: "io.flutter.app.FlutterApplication")
                 A: android:debuggable(0x0101000f)=(type 0x12)0xffffffff
                 A: android:appComponentFactory(0x0101057a)="androidx.core.app.CoreComponentFactory" (Raw: "androidx.core.app.CoreComponentFactory")
                 E: activity (line=28)
                   A: android:theme(0x01010000)=@0x7f0a0000
                   A: android:name(0x01010003)="com.example.flutter_app.MainActivity" (Raw: "com.example.flutter_app.MainActivity")
                   A: android:launchMode(0x0101001d)=(type 0x10)0x1
                   A: android:configChanges(0x0101001f)=(type 0x11)0x40003fb4
                   A: android:windowSoftInputMode(0x0101022b)=(type 0x11)0x10
                   A: android:hardwareAccelerated(0x010102d3)=(type 0x12)0xffffffff
                   E: meta-data (line=42)
                     A: android:name(0x01010003)="io.flutter.embedding.android.NormalTheme" (Raw: "io.flutter.embedding.android.NormalTheme")
                     A: android:resource(0x01010025)=@0x7f0a0001
                   E: meta-data (line=52)
                     A: android:name(0x01010003)="io.flutter.embedding.android.SplashScreenDrawable" (Raw: "io.flutter.embedding.android.SplashScreenDrawable")
                     A: android:resource(0x01010025)=@0x7f040000
                   E: intent-filter (line=56)
                     E: action (line=57)
                       A: android:name(0x01010003)="android.intent.action.MAIN" (Raw: "android.intent.action.MAIN")
                     E: category (line=59)
                       A: android:name(0x01010003)="android.intent.category.LAUNCHER" (Raw: "android.intent.category.LAUNCHER")
                 E: meta-data (line=66)
                   A: android:name(0x01010003)="flutterEmbedding" (Raw: "flutterEmbedding")
                   A: android:value(0x01010024)=(type 0x10)0x2
[   +2 ms] Stopping app 'app.apk' on AOSP on IA Emulator.
[   +1 ms] executing: C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell am force-stop com.example.flutter_app
[ +549 ms] executing: C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell pm list packages com.example.flutter_app
[ +527 ms] package:com.example.flutter_app
[   +2 ms] executing: C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell cat /data/local/tmp/sky.com.example.flutter_app.sha1
[ +500 ms] be6a09c77f237581fcc4238f83a7e3b8d6c7a83b
[   +1 ms] Installing APK.
[   +1 ms] executing: C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe version
[ +477 ms] Android Debug Bridge version 1.0.41
                    Version 30.0.4-6686687
                    Installed as C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe
[   +1 ms] executing: C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe start-server
[ +479 ms] Installing build\app\outputs\flutter-apk\app.apk...
[        ] executing: C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 install -t -r
C:\Users\Pedro\Documents\Projetos\flutter\etec\flutter_app\build\app\outputs\flutter-apk\app.apk
[+2363 ms] Performing Streamed Install
                    Success
[        ] Installing build\app\outputs\flutter-apk\app.apk... (completed in 2,4s)
[   +1 ms] executing: C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell echo -n 28cc0b4dc06a76d921f04b4b9f9327358464a9fb >
/data/local/tmp/sky.com.example.flutter_app.sha1
[ +499 ms] AOSP on IA Emulator startApp
[   +2 ms] executing: C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell am start -a android.intent.action.RUN -f 0x20000000 --ez enable-background-compilation true
--ez enable-dart-profiling true --ez enable-checked-mode true --ez verify-entry-points true com.example.flutter_app/com.example.flutter_app.MainActivity
[ +524 ms] Starting: Intent { act=android.intent.action.RUN flg=0x20000000 cmp=com.example.flutter_app/.MainActivity (has extras) }
[   +1 ms] Waiting for observatory port to be available...
[+1043 ms] Observatory URL on device: http://127.0.0.1:33190/JB5tSIc4p9A=/
[   +1 ms] executing: C:\Users\Pedro\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 forward tcp:0 tcp:33190
[ +487 ms] 52125
[        ] Forwarded host port 52125 to device port 33190 for Observatory
[   +4 ms] Caching compiled dill
[  +21 ms] Connecting to service protocol: http://127.0.0.1:52125/JB5tSIc4p9A=/
[   +1 ms] DDS is currently disabled due to https://github.com/flutter/flutter/issues/62507
[ +190 ms] Successfully connected to service protocol: http://127.0.0.1:52125/JB5tSIc4p9A=/
[   +1 ms] Waiting for AOSP on IA Emulator to report its views...
[   +5 ms] Waiting for AOSP on IA Emulator to report its views... (completed in 4ms)
[   +9 ms] DevFS: Creating new filesystem on the device (null)
[  +21 ms] DevFS: Created new filesystem on the device (file:///data/user/0/com.example.flutter_app/code_cache/flutter_appMSKGCD/flutter_app/)
[   +1 ms] Updating assets
[  +80 ms] Syncing files to device AOSP on IA Emulator...
[   +1 ms] Scanning asset files
[   +2 ms] <- reset
[        ] Compiling dart to kernel with 0 updated files
[   +1 ms] <- recompile package:flutter_app/main.dart 4a6601c2-0a6e-4a84-bc1d-ca9596f74c9a
[        ] <- 4a6601c2-0a6e-4a84-bc1d-ca9596f74c9a
[  +59 ms] Updating files
[  +98 ms] DevFS: Sync finished
[   +1 ms] Syncing files to device AOSP on IA Emulator... (completed in 164ms)
[        ] Synced 1.7MB.
[        ] <- accept
[   +2 ms] Connected to _flutterView/0xebf6dc10.
[   +1 ms] Flutter run key commands.
[   +1 ms] r Hot reload. 
[        ] R Hot restart.
[        ] h Repeat this help message.
[        ] d Detach (terminate "flutter run" but leave application running).
[        ] c Clear the screen
[        ] q Quit (terminate the application on the device).
[        ] An Observatory debugger and profiler on AOSP on IA Emulator is available at: http://127.0.0.1:52125/JB5tSIc4p9A=/

[hlemcke]

Hi,

I'm facing the same problem with 2 physical devices: SM A320FL and SM A520F.

Launching lib\main.dart on SM A520F in debug mode...
Running Gradle task 'assembleDebug'...
√ Built build\app\outputs\flutter-apk\app-debug.apk.
Waiting for SM A520F to report its views...
Debug service listening on ws://127.0.0.1:53620/qPKkzdLBXOw=/ws
Syncing files to device SM A520F...
Incompatible protocol version: client=3.26 vm=4.0
Failed to connect to the VM observatory service at: ws://127.0.0.1:53620/qPKkzdLBXOw=/ws
java.io.IOException: Incompatible protocol version: client=3.26 vm=4.0

Output from flutter doctor:

Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel master, 1.22.0-10.0.pre.107, on Microsoft Windows [Version 10.0.19041.450], locale de-DE)
[√] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
[√] Chrome - develop for the web
[√] Android Studio (version 4.0)
[√] Connected device (4 available)

• No issues found!

Output from flutter run --verbose

[ +102 ms] executing: [D:\bin\flutter/] git -c log.showSignature=false log -n 1 --pretty=format:%H
[ +70 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
[ ] 54ade88
[ ] executing: [D:\bin\flutter/] git tag --points-at HEAD
[ +60 ms] Exit code 0 from: git tag --points-at HEAD
[ +1 ms] executing: [D:\bin\flutter/] git describe --match ..* --first-parent --long --tags
[ +79 ms] Exit code 0 from: git describe --match ..* --first-parent --long --tags
[ ] 1.22.0-9.0.pre-107-g54ade88365
[ +7 ms] executing: [D:\bin\flutter/] git rev-parse --abbrev-ref --symbolic @{u}
[ +45 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[ ] origin/master
[ ] executing: [D:\bin\flutter/] git ls-remote --get-url origin
[ +42 ms] Exit code 0 from: git ls-remote --get-url origin
[ ] https://github.com/flutter/flutter.git
[ +70 ms] executing: [D:\bin\flutter/] git rev-parse --abbrev-ref HEAD
[ +44 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[ ] master
[ +52 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[ +2 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[ +15 ms] executing: D:\bin\Android_SDK\platform-tools\adb.exe devices -l
[ +42 ms] List of devices attached
52009f8bec7825ed device product:a5y17ltexx model:SM_A520F device:a5y17lte transport_id:2
[ +5 ms] D:\bin\Android_SDK\platform-tools\adb.exe -s 52009f8bec7825ed shell getprop
[ +136 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[ +9 ms] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[ +4 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[ +203 ms] Generating D:\workspace.flutter\appsensors\android\app\src\main\java\io\flutter\plugins\GeneratedPluginRegistrant.java
[ +21 ms] ro.hardware = samsungexynos7880
[ +48 ms] Starting incremental build...
[ +3 ms] Initializing file store
[ +8 ms] Skipping target: gen_localizations
[ +4 ms] complete
[ +3 ms] Launching lib\main.dart on SM A520F in debug mode...
[ +4 ms] D:\bin\flutter\bin\cache\dart-sdk\bin\dart.exe --disable-dart-dev D:\bin\flutter\bin\cache\artifacts\engine\windows-x64\frontend_server.dart.snapshot --sdk-root D:\bin\flutter\bin\cache\artifacts\engine\common\flutter_patched_sdk/ --incremental --target=flutter --debugger-module-names --experimental-emit-debug-metadata -Ddart.developer.causal_async_stacks=true -Dflutter.inspector.structuredErrors=true --output-dill C:\Users\HAJOLE~1\AppData\Local\Temp\flutter_tools.d05699df\flutter_tool.202df69e\app.dill --packages .packages -Ddart.vm.profile=false -Ddart.vm.product=false --bytecode-options=source-positions,local-var-info,debugger-stops,instance-field-initializers,keep-unreachable-code,avoid-closure-call-instructions --enable-asserts --track-widget-creation --initialize-from-dill build\f872507f30e2ff2523f0f1d19160266e.cache.dill.track.dill
[ +6 ms] executing: D:\bin\Android_SDK\build-tools\29.0.3\aapt dump xmltree D:\workspace.flutter\appsensors\build\app\outputs\flutter-apk\app.apk AndroidManifest.xml
[ +18 ms] Exit code 0 from: D:\bin\Android_SDK\build-tools\29.0.3\aapt dump xmltree D:\workspace.flutter\appsensors\build\app\outputs\flutter-apk\app.apk AndroidManifest.xml
[ ] N: android=http://schemas.android.com/apk/res/android
E: manifest (line=2)
A: android:versionCode(0x0101021b)=(type 0x10)0x1
A: android:versionName(0x0101021c)="0.0.7" (Raw: "0.0.7")
A: android:compileSdkVersion(0x01010572)=(type 0x10)0x1d
A: android:compileSdkVersionCodename(0x01010573)="10" (Raw: "10")
A: package="com.djarjo.appsensors" (Raw: "com.djarjo.appsensors")
A: platformBuildVersionCode=(type 0x10)0x1d
A: platformBuildVersionName=(type 0x10)0xa
E: uses-sdk (line=7)
A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10
A: android:targetSdkVersion(0x01010270)=(type 0x10)0x1d
E: uses-permission (line=14)
A: android:name(0x01010003)="android.permission.INTERNET" (Raw: "android.permission.INTERNET")
E: uses-permission (line=15)
A: android:name(0x01010003)="android.permission.ACCESS_FINE_LOCATION" (Raw: "android.permission.ACCESS_FINE_LOCATION")
E: uses-permission (line=16)
A: android:name(0x01010003)="android.permission.ACTIVITY_RECOGNITION" (Raw: "android.permission.ACTIVITY_RECOGNITION")
E: uses-permission (line=17)
A: android:name(0x01010003)="android.permission.BODY_SENSORS" (Raw: "android.permission.BODY_SENSORS")
E: application (line=19)
A: android:label(0x01010001)="appsensors" (Raw: "appsensors")
A: android:debuggable(0x0101000f)=(type 0x12)0xffffffff
A: android:appComponentFactory(0x0101057a)="androidx.core.app.CoreComponentFactory" (Raw: "androidx.core.app.CoreComponentFactory")
E: activity (line=23)
A: android:theme(0x01010000)=@0x01030009
A: android:name(0x01010003)="com.djarjo.appsensors.MainActivity" (Raw: "com.djarjo.appsensors.MainActivity")
A: android:launchMode(0x0101001d)=(type 0x10)0x1
A: android:configChanges(0x0101001f)=(type 0x11)0x40003fb4
A: android:windowSoftInputMode(0x0101022b)=(type 0x11)0x10
A: android:hardwareAccelerated(0x010102d3)=(type 0x12)0xffffffff
E: meta-data (line=37)
A: android:name(0x01010003)="io.flutter.embedding.android.NormalTheme" (Raw: "io.flutter.embedding.android.NormalTheme")
A: android:resource(0x01010025)=@0x7f0a0001
E: meta-data (line=47)
A: android:name(0x01010003)="io.flutter.embedding.android.SplashScreenDrawable" (Raw: "io.flutter.embedding.android.SplashScreenDrawable")
A: android:resource(0x01010025)=@0x7f040000
E: intent-filter (line=51)
E: action (line=52)
A: android:name(0x01010003)="android.intent.action.MAIN" (Raw: "android.intent.action.MAIN")
E: category (line=54)
A: android:name(0x01010003)="android.intent.category.LAUNCHER" (Raw: "android.intent.category.LAUNCHER")
E: meta-data (line=61)
A: android:name(0x01010003)="flutterEmbedding" (Raw: "flutterEmbedding")
A: android:value(0x01010024)=(type 0x10)0x2
[ +5 ms] executing: D:\bin\Android_SDK\platform-tools\adb.exe -s 52009f8bec7825ed shell -x logcat -v time -t 1
[ +168 ms] Exit code 0 from: D:\bin\Android_SDK\platform-tools\adb.exe -s 52009f8bec7825ed shell -x logcat -v time -t 1
[ ] --------- beginning of main
09-09 09:32:27.212 E/adbd ( 3509): service_to_fd: shell:logcat -v time -t 1
[ +1 ms] executing: D:\bin\Android_SDK\platform-tools\adb.exe -s 52009f8bec7825ed shell -x logcat -v time -t 1
[ +142 ms] Exit code 0 from: D:\bin\Android_SDK\platform-tools\adb.exe -s 52009f8bec7825ed shell -x logcat -v time -t 1
[ ] --------- beginning of main
09-09 09:32:27.383 E/adbd ( 3509): service_to_fd: shell:logcat -v time -t 1
[ +46 ms] <- compile package:appsensors/main.dart
[ +18 ms] executing: D:\bin\Android_SDK\platform-tools\adb.exe version
[ +28 ms] Android Debug Bridge version 1.0.41
Version 30.0.4-6686687
Installed as D:\bin\Android_SDK\platform-tools\adb.exe
[ +4 ms] executing: D:\bin\Android_SDK\platform-tools\adb.exe start-server
[ +29 ms] Building APK
Running Gradle task 'assembleDebug'...
[ +17 ms] gradle.properties already sets android.enableR8
[ +2 ms] Using gradle from D:\workspace.flutter\appsensors\android\gradlew.bat.
[ +1 ms] D:\workspace.flutter\appsensors\android\gradlew.bat mode: 33279 rwxrwxrwx.
[ +12 ms] executing: D:\bin\AndroidSDK\jre\bin\java -version
[ +96 ms] Exit code 0 from: D:\bin\AndroidSDK\jre\bin\java -version
[ ] openjdk version "1.8.0_242-release"
OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
OpenJDK 64-Bit Server VM (build 25.242-b01, mixed mode)
[ +3 ms] executing: [D:\workspace.flutter\appsensors\android/] D:\workspace.flutter\appsensors\android\gradlew.bat -q -Ptarget-platform=android-arm64 -Ptarget=D:\workspace.flutter\appsensors\lib\main.dart -Ptrack-widget-creation=true -Pfilesystem-scheme=org-dartlang-root -Pdart-defines=flutter.inspector.structuredErrors%3Dtrue assembleDebug
[+7163 ms] calculateSha: LocalDirectory: 'D:\workspace.flutter\appsensors\build\app\outputs\flutter-apk'/app.apk
[ +35 ms] calculateSha: reading file took 34us
[ +474 ms] calculateSha: computing sha took 474us
[ +3 ms] √ Built build\app\outputs\flutter-apk\app-debug.apk.
[ +2 ms] executing: D:\bin\Android_SDK\build-tools\29.0.3\aapt dump xmltree D:\workspace.flutter\appsensors\build\app\outputs\flutter-apk\app.apk AndroidManifest.xml
[ +19 ms] Exit code 0 from: D:\bin\Android_SDK\build-tools\29.0.3\aapt dump xmltree D:\workspace.flutter\appsensors\build\app\outputs\flutter-apk\app.apk AndroidManifest.xml
[ ] N: android=http://schemas.android.com/apk/res/android
E: manifest (line=2)
A: android:versionCode(0x0101021b)=(type 0x10)0x1
A: android:versionName(0x0101021c)="0.0.7" (Raw: "0.0.7")
A: android:compileSdkVersion(0x01010572)=(type 0x10)0x1d
A: android:compileSdkVersionCodename(0x01010573)="10" (Raw: "10")
A: package="com.djarjo.appsensors" (Raw: "com.djarjo.appsensors")
A: platformBuildVersionCode=(type 0x10)0x1d
A: platformBuildVersionName=(type 0x10)0xa
E: uses-sdk (line=7)
A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10
A: android:targetSdkVersion(0x01010270)=(type 0x10)0x1d
E: uses-permission (line=14)
A: android:name(0x01010003)="android.permission.INTERNET" (Raw: "android.permission.INTERNET")
E: uses-permission (line=15)
A: android:name(0x01010003)="android.permission.ACCESS_FINE_LOCATION" (Raw: "android.permission.ACCESS_FINE_LOCATION")
E: uses-permission (line=16)
A: android:name(0x01010003)="android.permission.ACTIVITY_RECOGNITION" (Raw: "android.permission.ACTIVITY_RECOGNITION")
E: uses-permission (line=17)
A: android:name(0x01010003)="android.permission.BODY_SENSORS" (Raw: "android.permission.BODY_SENSORS")
E: application (line=19)
A: android:label(0x01010001)="appsensors" (Raw: "appsensors")
A: android:debuggable(0x0101000f)=(type 0x12)0xffffffff
A: android:appComponentFactory(0x0101057a)="androidx.core.app.CoreComponentFactory" (Raw: "androidx.core.app.CoreComponentFactory")
E: activity (line=23)
A: android:theme(0x01010000)=@0x01030009
A: android:name(0x01010003)="com.djarjo.appsensors.MainActivity" (Raw: "com.djarjo.appsensors.MainActivity")
A: android:launchMode(0x0101001d)=(type 0x10)0x1
A: android:configChanges(0x0101001f)=(type 0x11)0x40003fb4
A: android:windowSoftInputMode(0x0101022b)=(type 0x11)0x10
A: android:hardwareAccelerated(0x010102d3)=(type 0x12)0xffffffff
E: meta-data (line=37)
A: android:name(0x01010003)="io.flutter.embedding.android.NormalTheme" (Raw: "io.flutter.embedding.android.NormalTheme")
A: android:resource(0x01010025)=@0x7f0a0001
E: meta-data (line=47)
A: android:name(0x01010003)="io.flutter.embedding.android.SplashScreenDrawable" (Raw: "io.flutter.embedding.android.SplashScreenDrawable")
A: android:resource(0x01010025)=@0x7f040000
E: intent-filter (line=51)
E: action (line=52)
A: android:name(0x01010003)="android.intent.action.MAIN" (Raw: "android.intent.action.MAIN")
E: category (line=54)
A: android:name(0x01010003)="android.intent.category.LAUNCHER" (Raw: "android.intent.category.LAUNCHER")
E: meta-data (line=61)
A: android:name(0x01010003)="flutterEmbedding" (Raw: "flutterEmbedding")
A: android:value(0x01010024)=(type 0x10)0x2
[ +1 ms] Stopping app 'app.apk' on SM A520F.
[ ] executing: D:\bin\Android_SDK\platform-tools\adb.exe -s 52009f8bec7825ed shell am force-stop com.djarjo.appsensors
[ +217 ms] executing: D:\bin\Android_SDK\platform-tools\adb.exe -s 52009f8bec7825ed shell pm list packages com.djarjo.appsensors
[ +936 ms] package:com.djarjo.appsensors
[ +3 ms] executing: D:\bin\Android_SDK\platform-tools\adb.exe -s 52009f8bec7825ed shell cat /data/local/tmp/sky.com.djarjo.appsensors.sha1
[ +113 ms] 42c4ccd7d8de35103b3266650d15a2641cc15edd
[ +2 ms] Installing APK.
[ +7 ms] executing: D:\bin\Android_SDK\platform-tools\adb.exe version
[ +66 ms] Android Debug Bridge version 1.0.41
Version 30.0.4-6686687
Installed as D:\bin\Android_SDK\platform-tools\adb.exe
[ ] executing: D:\bin\Android_SDK\platform-tools\adb.exe start-server
Installing build\app\outputs\flutter-apk\app.apk...
[ +37 ms] executing: D:\bin\Android_SDK\platform-tools\adb.exe -s 52009f8bec7825ed install -t -r D:\workspace.flutter\appsensors\build\app\outputs\flutter-apk\app.apk
[+20769 ms] Performing Streamed Install
Success
[ +6 ms] executing: D:\bin\Android_SDK\platform-tools\adb.exe -s 52009f8bec7825ed shell echo -n 24ad64ab7c493663f64e9305df3e7cc871c28964 > /data/local/tmp/sky.com.djarjo.appsensors.sha1
[ +93 ms] SM A520F startApp
[ +2 ms] executing: D:\bin\Android_SDK\platform-tools\adb.exe -s 52009f8bec7825ed shell am start -a android.intent.action.RUN -f 0x20000000 --ez enable-background-compilation true --ez enable-dart-profiling true --ez enable-checked-mode true --ez verify-entry-points true --ez start-paused true com.djarjo.appsensors/com.djarjo.appsensors.MainActivity
[ +263 ms] Starting: Intent { act=android.intent.action.RUN flg=0x20000000 cmp=com.djarjo.appsensors/.MainActivity (has extras) }
[ ] Waiting for observatory port to be available...
[+2124 ms] Observatory URL on device: http://127.0.0.1:45365/eoy-bt-cjt4=/
[ +3 ms] executing: D:\bin\Android_SDK\platform-tools\adb.exe -s 52009f8bec7825ed forward tcp:0 tcp:45365
[ +67 ms] 53277
[ ] Forwarded host port 53277 to device port 45365 for Observatory
[ +4 ms] Caching compiled dill
[ +24 ms] Connecting to service protocol: http://127.0.0.1:53277/eoy-bt-cjt4=/
[ ] DDS is currently disabled due to #62507
[ +714 ms] Successfully connected to service protocol: http://127.0.0.1:53277/eoy-bt-cjt4=/
Waiting for SM A520F to report its views...
[ +32 ms] DevFS: Creating new filesystem on the device (null)
[ +74 ms] DevFS: Created new filesystem on the device (file:///data/user/0/com.djarjo.appsensors/code_cache/appsensorsBAJYBO/appsensors/)
[ +1 ms] Updating assets
Debug service listening on ws://127.0.0.1:53277/eoy-bt-cjt4=/ws
Syncing files to device SM A520F...
[ +64 ms] Scanning asset files
[ +1 ms] <- reset
[ ] Compiling dart to kernel with 0 updated files
[ ] <- recompile package:appsensors/main.dart 621edd41-7e94-492c-b694-3e8bf2eb4247
[ ] <- 621edd41-7e94-492c-b694-3e8bf2eb4247
[ +59 ms] Updating files
[ +260 ms] DevFS: Sync finished
[ +1 ms] Synced 1.6MB.
[ +1 ms] <- accept
[ +6 ms] Connected to _flutterView/0x707708c820.
Incompatible protocol version: client=3.26 vm=4.0
Failed to connect to the VM observatory service at: ws://127.0.0.1:53277/eoy-bt-cjt4=/ws
java.io.IOException: Incompatible protocol version: client=3.26 vm=4.0
[ +98 ms] DevFS: Deleting filesystem on the device (file:///data/user/0/com.djarjo.appsensors/code_cache/appsensorsBAJYBO/appsensors/)
[ +19 ms] DevFS: Deleted filesystem on the device (file:///data/user/0/com.djarjo.appsensors/code_cache/appsensorsBAJYBO/appsensors/)
[ +35 ms] executing: D:\bin\Android_SDK\platform-tools\adb.exe -s 52009f8bec7825ed shell am force-stop com.djarjo.appsensors

[TahaTesser]

Could everyone who still has this problem please file a new issue with the exact description of what happens, logs, and the output of flutter doctor -v.
All system setups can be slightly different, so it's always better to open new issues and reference related issues.

[mxb9771]

Could everyone who still has this problem please file a new issue with the exact description of what happens, logs, and the output of flutter doctor -v.
All system setups can be slightly different, so it's always better to open new issues and reference related issues.

#65472