我在Flutter上构建apk时遇到了一个奇怪的错误：
% flutter build apk --no-shrink
You are building a fat APK that includes binaries for android-arm, android-arm64, android-x64.
If you are deploying the app to the Play Store, it's recommended to use app bundles or split the APK to reduce the APK size.
To generate an app bundle, run:
flutter build appbundle --target-platform android-arm,android-arm64,android-x64
Learn more on: https://developer.android.com/guide/app-bundle
To split the APKs per ABI, run:
flutter build apk --target-platform android-arm,android-arm64,android-x64 --split-per-abi
Learn more on: https://developer.android.com/studio/build/configure-apk-splits#configure-abi-split
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:checkReleaseDuplicateClasses'.
> 1 exception was raised by workers:
java.lang.RuntimeException: Duplicate class com.google.common.util.concurrent.ListenableFuture found in modules guava-26.0-android.jar (com.google.guava:guava:26.0-android) and listenablefuture-1.0.jar (com.google.guava:listenablefuture:1.0)
Go to the documentation to learn how to <a href="d.android.com/r/tools/classpath-sync-errors">Fix dependency resolution errors</a>.
* 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 29s
Running Gradle task 'assembleRelease'...
Running Gradle task 'assembleRelease'... Done 30.3s
Gradle task assembleRelease failed with exit code 1
joao@Mini-de-Joao opengames % flutter build apk --no-shrink
You are building a fat APK that includes binaries for android-arm, android-arm64, android-x64.
If you are deploying the app to the Play Store, it's recommended to use app bundles or split the APK to reduce the APK size.
To generate an app bundle, run:
flutter build appbundle --target-platform android-arm,android-arm64,android-x64
Learn more on: https://developer.android.com/guide/app-bundle
To split the APKs per ABI, run:
flutter build apk --target-platform android-arm,android-arm64,android-x64 --split-per-abi
Learn more on: https://developer.android.com/studio/build/configure-apk-splits#configure-abi-split
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:checkReleaseDuplicateClasses'.
> 1 exception was raised by workers:
java.lang.RuntimeException: Duplicate class com.google.common.util.concurrent.ListenableFuture found in modules guava-26.0-android.jar (com.google.guava:guava:26.0-android) and listenablefuture-1.0.jar (com.google.guava:listenablefuture:1.0)
有什么想法吗？
此stackoverflow帖子中的解决方案。
2020解决方案
谷歌知道这个错误，所以他们制作了一个特殊的程序包来修复冲突。
将此添加到您的构建.gradle
implementation 'com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava'