Incompatible version of Kotlin on compilation

[as-85]

Checklist

• I read the troubleshooting guide before raising this issue
• I made sure that the issue I am raising doesn't already exist

Current bug behaviour

When compiling, many of these errors are displayed.

e: /Users/./StudioProjects/./build/audioplayers_android/.transforms/255311182dafdd6ac4eb63a5bb962d32/transformed/out/jars/classes.jar!/META-INF/audioplayers_android_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.7.1, expected version is 1.5.1.
e: /Users/./StudioProjects/./build/volume_controller/.transforms/fd9215dff063f50e68dfae64139c2d8c/transformed/out/jars/classes.jar!/META-INF/volume_controller_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.7.1, expected version is 1.5.1.
e: /Users/./StudioProjects/./build/package_info_plus/.transforms/79453a5a4234b228dfa8e31803b7fca3/transformed/out/jars/classes.jar!/META-INF/package_info_plus_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.7.1, expected version is 1.5.1.
e: /Users/./StudioProjects/./build/fluttertoast/.transforms/2ca7d08035b3ebb8fc9a6b18ef5341d7/transformed/out/jars/classes.jar!/META-INF/fluttertoast_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.7.1, expected version is 1.5.1.
e: /Users/./.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-jdk8/1.7.10/d70d7d2c56371f7aa18f32e984e3e2e998fe9081/kotlin-stdlib-jdk8-1.7.10.jar!/META-INF/kotlin-stdlib-jdk8.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.7.1, expected version is 1.5.1.
e: /Users/./.gradle/caches/modules-2/files-2.1/androidx.annotation/annotation/1.5.0/857678d6b4ca7b28571ef7935c668bdb57e15027/annotation-1.5.0.jar!/META-INF/annotation.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.7.1, expected version is 1.5.1.
e: /Users/./.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-jdk7/1.7.21/a0ba09615c2213d580315e234b3febfea25b757e/kotlin-stdlib-jdk7-1.7.21.jar!/META-INF/kotlin-stdlib-jdk7.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.7.1, expected version is 1.5.1.
e: /Users/./.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.7.21/1a2eaf898a0dda83037034b10a42053cf8a7caf8/kotlin-stdlib-1.7.21.jar!/META-INF/kotlin-stdlib.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.7.1, expected version is 1.5.1.
e: /Users/./.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-common/1.7.21/cb02257de8e13e8498f8e2f69f742f2d438e794d/kotlin-stdlib-common-1.7.21.jar!/META-INF/kotlin-stdlib-common.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.7.1, expected version is 1.5.1.

Expected behaviour

Steps to reproduce

Code sample

Logs

Full Logs

Flutter doctor:

[✓] Flutter (Channel stable, 3.3.10, on macOS 13.1 22C65 darwin-x64, locale de-DE)
    • Flutter version 3.3.10 on channel stable at /Library/Flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 135454af32 (5 weeks ago), 2022-12-15 07:36:55 -0800
    • Engine revision 3316dd8728
    • Dart version 2.18.6
    • DevTools version 2.15.0

[✓] Android toolchain - develop for Android devices (Android SDK version 33.0.1)
    • Android SDK at /Users/andreas/Library/Android/sdk
    • Platform android-33, build-tools 33.0.1
    • Java binary at: /Applications/Android Studio.app/Contents/jre/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 11.0.13+0-b1751.21-8125866)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 14.2)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 14C18
    • CocoaPods version 1.11.3

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2021.3)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 11.0.13+0-b1751.21-8125866)

[✓] VS Code (version 1.75.0-insider)
    • VS Code at /Applications/Visual Studio Code - Insiders.app/Contents
    • Flutter extension can be installed from:
      🔨 https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[✓] Connected device (3 available)
    • TB132FU (mobile) • HA1RNFWK • android-arm64  • Android 12 (API 31)
    • macOS (desktop)  • macos    • darwin-x64     • macOS 13.1 22C65 darwin-x64
    • Chrome (web)     • chrome   • web-javascript • Google Chrome 109.0.5414.87

[✓] HTTP Host Availability
    • All required HTTP hosts are available

• No issues found!

Audio Files/URLs/Sources

Screenshots

Environment information

• audioplayers version: 2.0.0

Platform 1: android

• OS name and version: 12
• Device: Lenovo Tab P11 Pro Gen 2
• build mode: release
• error peculiarities (optional):
• Platforms tested without any issue (optional):

More information

[Gustl22]

What kotlin_version do you have in your build.gradle? Doesn't seem to be related to audioplayers as other packages are also marked as incompatible. It seems that your app uses an outdated one.

[as-85]

I use the version 1.7.10

[Gustl22]

Does the example app work for you?
https://github.com/bluefireteam/audioplayers/tree/main/packages/audioplayers/example

[as-85]

I did not write that it does not work. I only pointed out the errors that are displayed during the build process. The function is fine.

If source code can help, I'm happy to provide some.

[Gustl22]

If the example app does not give this warning, it most likely is a fault in your app. Otherwise you can share your project code if you want.

[as-85]

Trying it out.

[Gustl22]

@as-85 did you test? Thx

[as-85]

With the sample project, I get the following error message during the build:

Warning: The plugin file_picker requires Android SDK version 33.
For more information about build configuration, see https://docs.flutter.dev/deployment/android#reviewing-the-build-configuration.
One or more plugins require a higher Android SDK version.
Fix this issue by adding the following to /Users/andreas/Downloads/test/packages/audioplayers/example/android/app/build.gradle:
android {
  compileSdkVersion 33
  ...
}

But the build still works.

[Gustl22]

So the kotlin thing is definitely something you need to change in your app in the build.gradle file. Like done in our example app.

Regarding the compileSdk, we needed to wait for Flutter to officially support API 33, which is now the case. This will be fixed in the an upcoming release, see #1364