Execution failed for task ':app:compileDebugJavaWithJavac'. error plz help

[kingk5]

C:\Users\Home\Desktop\all same\flutter-unity-view-widget-master\flutter-unity-view-widget-master\example\android\app\src\main\java\io\flutter\plugins\GeneratedPluginRegistrant.java:17: error: package com.rexraphael.flutterunitywidget does not exist
com.rexraphael.flutterunitywidget.FlutterUnityWidgetPlugin.registerWith(shimPluginRegistry.registrarFor("com.rexraphael.flutterunitywidget.FlutterUnityWidgetPlugin"));
^
1 error

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':app:compileDebugJavaWithJavac'.

Compilation failed; see the compiler error output for details.

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 3s
Finished with error: Gradle task assembleDebug failed with exit code 1

flutter run -v log:-

C:\Users\Home\Desktop\all same\flutter-unity-view-widget-master\flutter-unity-view-widget-master\example>flutter run -v
[ +29 ms] executing: [C:\Program Files\flutter] git -c log.showSignature=false log -n 1 --pretty=format:%H
[ +91 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
[ ] 0b8abb4724aa590dd0f429683339b1e045a1594d
[ ] executing: [C:\Program Files\flutter] git describe --match v*.. --first-parent --long --tags
[ +76 ms] Exit code 0 from: git describe --match v*.. --first-parent --long --tags
[ ] v1.12.13+hotfix.8-0-g0b8abb472
[ +7 ms] executing: [C:\Program Files\flutter] git rev-parse --abbrev-ref --symbolic @{u}
[ +62 ms] Exit code 128 from: git rev-parse --abbrev-ref --symbolic @{u}
[ ] fatal: HEAD does not point to a branch
[ +15 ms] executing: [C:\Program Files\flutter] git rev-parse --abbrev-ref HEAD
[ +59 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[ ] HEAD
[ +85 ms] executing: C:\Users\Home\AppData\Local\Android\Sdk\platform-tools\adb.exe devices -l
[ +35 ms] Exit code 0 from: C:\Users\Home\AppData\Local\Android\Sdk\platform-tools\adb.exe devices -l
[ ] List of devices attached
32111c8f0604 device product:tissot model:Mi_A1 device:tissot_sprout transport_id:18
[ +18 ms] C:\Users\Home\AppData\Local\Android\Sdk\platform-tools\adb.exe -s 32111c8f0604 shell getprop
[ +119 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[ +8 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.
[ +53 ms] Found plugin flutter_unity_widget at C:\Program Files\flutter.pub-cache\hosted\pub.dartlang.org\flutter_unity_widget-0.1.6+8
[ +174 ms] Found plugin flutter_unity_widget at C:\Program Files\flutter.pub-cache\hosted\pub.dartlang.org\flutter_unity_widget-0.1.6+8
[ +83 ms] Generating C:\Users\Home\Desktop\all
same\flutter-unity-view-widget-master\flutter-unity-view-widget-master\example\android\app\src\main\java\io\flutter\plugins\GeneratedPluginRegistrant.java
[ +68 ms] ro.hardware = qcom
[ +46 ms] Launching lib\main.dart on Mi A1 in debug mode...
[ +17 ms] executing: C:\Users\Home\AppData\Local\Android\Sdk\platform-tools\adb.exe -s 32111c8f0604 shell -x logcat -v time -t 1
[ +80 ms] Exit code 0 from: C:\Users\Home\AppData\Local\Android\Sdk\platform-tools\adb.exe -s 32111c8f0604 shell -x logcat -v time -t 1
[ ] --------- beginning of main
07-20 16:16:49.072 W/Settings( 6940): Setting preferred_network_mode has moved from android.provider.Settings.Secure to android.provider.Settings.Global.
[ +6 ms] executing: C:\Users\Home\AppData\Local\Android\Sdk\platform-tools\adb.exe version
[ +2 ms] executing: C:\Users\Home\AppData\Local\Android\Sdk\platform-tools\adb.exe -s 32111c8f0604 logcat -v time -T 07-20 16:16:49.072
[ +46 ms] Android Debug Bridge version 1.0.41
Version 29.0.5-5949299
Installed as C:\Users\Home\AppData\Local\Android\Sdk\platform-tools\adb.exe
[ +5 ms] executing: C:\Users\Home\AppData\Local\Android\Sdk\platform-tools\adb.exe start-server
[ +39 ms] Building APK
[ +22 ms] Running Gradle task 'assembleDebug'...
[ +3 ms] gradle.properties already sets android.enableR8
[ +6 ms] Using gradle from C:\Users\Home\Desktop\all same\flutter-unity-view-widget-master\flutter-unity-view-widget-master\example\android\gradlew.bat.
[ +15 ms] executing: C:\Program Files\Android\Android Studio1\jre\bin\java -version
[ +166 ms] Exit code 0 from: C:\Program Files\Android\Android Studio1\jre\bin\java -version
[ +1 ms] 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:\Program Files\Android\Android Studio1\jre\bin\java -version
[ +161 ms] Exit code 0 from: C:\Program Files\Android\Android Studio1\jre\bin\java -version
[ +1 ms] 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)
[ +5 ms] executing: [C:\Users\Home\Desktop\all same\flutter-unity-view-widget-master\flutter-unity-view-widget-master\example\android] C:\Users\Home\Desktop\all
same\flutter-unity-view-widget-master\flutter-unity-view-widget-master\example\android\gradlew.bat -Pverbose=true -Ptarget=C:\Users\Home\Desktop\all
same\flutter-unity-view-widget-master\flutter-unity-view-widget-master\example\lib\main.dart -Ptrack-widget-creation=true -Pfilesystem-scheme=org-dartlang-root
-Ptarget-platform=android-arm64 assembleDebug
[+2822 ms] > Task :app:compileFlutterBuildDebug UP-TO-DATE
[ +1 ms] > Task :app:packLibsflutterBuildDebug UP-TO-DATE
[ ] > Task :app:preBuild UP-TO-DATE
[ ] > Task :app:preDebugBuild UP-TO-DATE
[ ] > Task :UnityExport:preBuild UP-TO-DATE
[ +1 ms] > Task :UnityExport:preDebugBuild UP-TO-DATE
[ ] > Task :UnityExport:compileDebugAidl NO-SOURCE
[ ] > Task :app:compileDebugAidl NO-SOURCE
[ +72 ms] > Task :UnityExport:packageDebugRenderscript NO-SOURCE
[ +3 ms] > Task :app:compileDebugRenderscript NO-SOURCE
[ +8 ms] > Task :app:checkDebugManifest UP-TO-DATE
[ ] > Task :app:generateDebugBuildConfig UP-TO-DATE
[ +87 ms] > Task :app:cleanMergeDebugAssets
[ +2 ms] > Task :app:mergeDebugShaders UP-TO-DATE
[ +6 ms] > Task :app:compileDebugShaders UP-TO-DATE
[ ] > Task :app:generateDebugAssets UP-TO-DATE
[ +1 ms] > Task :UnityExport:mergeDebugShaders UP-TO-DATE
[ +6 ms] > Task :UnityExport:compileDebugShaders UP-TO-DATE
[ ] > Task :UnityExport:generateDebugAssets UP-TO-DATE
[ ] > Task :UnityExport:packageDebugAssets UP-TO-DATE
[ +154 ms] > Task :app:mergeDebugAssets
[ +430 ms] > Task :app:copyFlutterAssetsDebug
[ +3 ms] > Task :app:mainApkListPersistenceDebug UP-TO-DATE
[ +1 ms] > Task :app:generateDebugResValues UP-TO-DATE
[ ] > Task :app:generateDebugResources UP-TO-DATE
[ ] > Task :UnityExport:compileDebugRenderscript NO-SOURCE
[ ] > Task :UnityExport:generateDebugResValues UP-TO-DATE
[ ] > Task :UnityExport:generateDebugResources UP-TO-DATE
[ ] > Task :UnityExport:packageDebugResources UP-TO-DATE
[ ] > Task :app:mergeDebugResources UP-TO-DATE
[ ] > Task :app:createDebugCompatibleScreenManifests UP-TO-DATE
[ ] > Task :UnityExport:checkDebugManifest UP-TO-DATE
[ ] > Task :UnityExport:processDebugManifest UP-TO-DATE
[ ] > Task :app:processDebugManifest UP-TO-DATE
[ +217 ms] > Task :UnityExport:parseDebugLibraryResources UP-TO-DATE
[ +124 ms] > Task :UnityExport:generateDebugRFile UP-TO-DATE
[ +1 ms] > Task :app:processDebugResources UP-TO-DATE
[ +1 ms] > Task :UnityExport:generateDebugBuildConfig UP-TO-DATE
[ ] > Task :UnityExport:javaPreCompileDebug UP-TO-DATE
[ ] > Task :UnityExport:compileDebugJavaWithJavac UP-TO-DATE
[ +1 ms] > Task :UnityExport:bundleLibCompileDebug UP-TO-DATE
[ +1 ms] > Task :app:compileDebugKotlin UP-TO-DATE
[ ] > Task :app:javaPreCompileDebug UP-TO-DATE
[ +135 ms] > Task :app:compileDebugJavaWithJavac FAILED
[ +4 ms] C:\Users\Home\Desktop\all
same\flutter-unity-view-widget-master\flutter-unity-view-widget-master\example\android\app\src\main\java\i
o\flutter\plugins\GeneratedPluginRegistrant.java:17: error: package
com.rexraphael.flutterunitywidget does not exist
[ +3 ms] com.rexraphael.flutterunitywidget.FlutterUnityWidgetPlugin.registerWith(shimPluginRegistry.registrarFor("com.rexraphael.flutterunitywidget.FlutterUnityWidgetPlugin"));
[ +1 ms] ^
[ ] 1 error
[ ] FAILURE: Build failed with an exception.
[ +1 ms] * What went wrong:
[ ] Execution failed for task ':app:compileDebugJavaWithJavac'.
[ ] > Compilation failed; see the compiler error output for details.
[ ] * Try:
[ ] Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
[ +2 ms] * Get more help at https://help.gradle.org
[ +1 ms] BUILD FAILED in 3s
[ +1 ms] 31 actionable tasks: 4 executed, 27 up-to-date
[ +780 ms] Running Gradle task 'assembleDebug'... (completed in 5.3s)
[ +8 ms] "flutter run" took 6,270ms.
Gradle task assembleDebug failed with exit code 1

#0 throwToolExit (package:flutter_tools/src/base/common.dart:28:3)
#1 buildGradleApp (package:flutter_tools/src/android/gradle.dart:387:7)

#2 _AndroidBuilderImpl.buildApk (package:flutter_tools/src/android/android_builder.dart:97:13)
#3 AndroidDevice.startApp (package:flutter_tools/src/android/android_device.dart:522:28)

#4 FlutterDevice.runHot (package:flutter_tools/src/resident_runner.dart:450:54)
#5 _asyncThenWrapperHelper. (dart:async-patch/async_patch.dart:73:64)
#6 _rootRunUnary (dart:async/zone.dart:1134:38)
#7 _CustomZone.runUnary (dart:async/zone.dart:1031:19)
#8 _FutureListener.handleValue (dart:async/future_impl.dart:139:18)
#9 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:680:45)
#10 Future._propagateToListeners (dart:async/future_impl.dart:709:32)
#11 Future._completeWithValue (dart:async/future_impl.dart:524:5)
#12 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:32:15)
#13 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:290:13)
#14 ApplicationPackageFactory.getPackageForPlatform (package:flutter_tools/src/application_package.dart)
#15 _asyncThenWrapperHelper. (dart:async-patch/async_patch.dart:73:64)
#16 _rootRunUnary (dart:async/zone.dart:1134:38)
#17 _CustomZone.runUnary (dart:async/zone.dart:1031:19)
#18 _FutureListener.handleValue (dart:async/future_impl.dart:139:18)
#19 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:680:45)
#20 Future._propagateToListeners (dart:async/future_impl.dart:709:32)
#21 Future._completeWithValue (dart:async/future_impl.dart:524:5)
#22 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:32:15)
#23 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:290:13)
#24 AndroidApk.fromAndroidProject (package:flutter_tools/src/application_package.dart)
#25 _asyncThenWrapperHelper. (dart:async-patch/async_patch.dart:73:64)
#26 _rootRunUnary (dart:async/zone.dart:1134:38)
#27 _CustomZone.runUnary (dart:async/zone.dart:1031:19)
#28 _FutureListener.handleValue (dart:async/future_impl.dart:139:18)
#29 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:680:45)
#30 Future._propagateToListeners (dart:async/future_impl.dart:709:32)
#31 Future._completeWithValue (dart:async/future_impl.dart:524:5)
#32 Future._asyncComplete. (dart:async/future_impl.dart:554:7)
#33 _rootRun (dart:async/zone.dart:1126:13)
#34 _CustomZone.run (dart:async/zone.dart:1023:19)
#35 _CustomZone.runGuarded (dart:async/zone.dart:925:7)
#36 _CustomZone.bindCallbackGuarded. (dart:async/zone.dart:965:23)
#37 _microtaskLoop (dart:async/schedule_microtask.dart:43:21)
#38 _startMicrotaskLoop (dart:async/schedule_microtask.dart:52:
Gradle | Search for Help with Gradle
[Photo]
5)
#39 _runPendingImmediateCallback (dart:isolate-patch/isolate_patch.dart:118:13)
#40 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:175:5)

flutter doctor log:-
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel unknown, v1.12.13+hotfix.8, on Microsoft Windows [Version 10.0.18363.900], locale en-IN)

[√] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
[√] Android Studio (version 4.0)
[!] VS Code (version 1.44.2)
X Flutter extension not installed; install from
https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[√] Connected device (1 available)

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 26s
Exception: Gradle task assembleDebug failed with exit code 1

[AmoryR]

I have the same issue, I can't figure it out. I followed the tutorial step by step multiple times with the example folder and get this error each time...

[AmoryR]

I just fix this error buy moving the unity-classes.jar (UnityExport/lib) to folder unity-classes.
I found this solution here : #162
Also : https://www.youtube.com/watch?v=exNPmv_7--Q at 3:55
Now I can run the app but it crash when I want to open WithARkitScreen() using the router like the exemple ...

[juicycleff]

please use the new build script :)