Fails to build on Android

[SaxPlayer]

Builds fine on iOS but following error when compiling for Android:

`
FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':background_location_tracker:compileDebugKotlin'.

Inconsistent JVM-target compatibility detected for tasks 'compileDebugJavaWithJavac' (1.8) and 'compileDebugKotlin' (21).

Consider using JVM Toolchain: https://kotl.in/gradle/jvm/toolchain
Learn more about JVM-target validation: https://kotl.in/gradle/jvm/target-validation

• 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 2s
Error: Gradle task assembleDebug failed with exit code 1

Exited (1).
`

Using Gradle version 8.9
flutter.minSdkVersion=21
flutter.targetSdkVersion=34
flutter.compileSdkVersion=34

flutter doctor (verbose):

`
[✓] Flutter (Channel stable, 3.24.5, on macOS 15.1.1 24B2091 darwin-arm64, locale en-GB)
• Flutter version 3.24.5 on channel stable at /Users/andyclayton/development/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision dec2ee5c1f (9 days ago), 2024-11-13 11:13:06 -0800
• Engine revision a18df97ca5
• Dart version 3.5.4
• DevTools version 2.37.3

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
• Android SDK at /Users/andyclayton/development/Android/sdk
• Platform android-34, build-tools 34.0.0
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 21.0.3+-79915917-b509.11)
• All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 16.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 16B40
• CocoaPods version 1.16.2

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

[✓] Android Studio (version 2024.2)
• 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 21.0.3+-79915917-b509.11)

[✓] VS Code (version 1.95.3)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.100.0

[✓] Connected device (4 available)
• sdk gphone64 arm64 (mobile) • emulator-5554 • android-arm64 • Android 15 (API 35) (emulator)
• macOS (desktop) • macos • darwin-arm64 • macOS 15.1.1 24B2091 darwin-arm64
• Mac Designed for iPad (desktop) • mac-designed-for-ipad • darwin • macOS 15.1.1 24B2091 darwin-arm64
• Chrome (web) • chrome • web-javascript • Google Chrome 131.0.6778.86
! Error: Browsing on the local area network for iPhone. Ensure the device is unlocked and attached with a cable or associated with the same local area network as this Mac.
The device must be opted into Developer Mode to connect wirelessly. (code -27)

[✓] Network resources
• All expected network resources are available.

• No issues found!
`

[SaxPlayer]

Further information. More detailed log on compile that may help:

`
e: file:///Users/saxplayer/.pub-cache/hosted/pub.dev/background_location_tracker-1.4.3/android/src/main/kotlin/com/icapps/background_location_tracker/BackgroundLocationTrackerPlugin.kt:115:21 'lifecycle' hides member of supertype 'LifecycleOwner' and needs an 'override' modifier.
e: file:///Users/saxplayer/.pub-cache/hosted/pub.dev/background_location_tracker-1.4.3/android/src/main/kotlin/com/icapps/background_location_tracker/BackgroundLocationTrackerPlugin.kt:167:9 'getLifecycle' overrides nothing.
3 warnings

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':background_location_tracker:compileDebugKotlin'.

A failure occurred while executing org.jetbrains.kotlin.compilerRunner.GradleCompilerRunnerWithWorkers$GradleKotlinCompilerWorkAction
Compilation error. See log for more 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 12s
Error: Gradle task assembleDebug failed with exit code 1

Exited (1).
`

[SaxPlayer]

The fork mentioned in another bug report made by @ jeferson505 fixes this issue, so that fork needs merging. Glad there's a workaround for the time being!

dependencies: background_location_tracker: git: url: https://github.com/jeferson505/flutter-background-location-tracker.git

[12people]

Unfortunately, the fork doesn't seem to solve the Inconsistent JVM-target compatibility detected for tasks 'compileDebugJavaWithJavac' (1.8) and 'compileDebugKotlin' (21) issue for me, not sure why.

[ikbendewilliam]

This should be fixed now in version 1.5.0