如何解决任务执行失败的问题:app:checkDebugDuplicateClasses‘

Question

当我想运行这些应用程序时，我会得到错误。

任务的

执行失败:app:checkDebugDuplicateClasses‘。

我使用的软件包是：

^0.8.3+2

• video_player：^2.1.13

• video_editor：^1.2.0

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:checkDebugDuplicateClasses'.
> 1 exception was raised by workers:
  java.lang.RuntimeException: Duplicate class com.google.android.exoplayer2.ui.package-info found in modules jetified-exoplayer-common-2.14.1-runtime.jar (com.google.android.exoplayer:exoplayer-common:2.14.1) and jetified-exoplayer-ui-2.13.2-runtime.jar (com.google.android.exoplayer:exoplayer-ui:2.13.2)

  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 53s

我怎么才能解决这个问题？

后加

dependency_overrides:

video_player: 2.1.13

e: D:\flutter\.pub-cache\hosted\pub.dartlang.org\wakelock-0.4.0\android\src\main\kotlin\creativemaybeno\wakelock\Wakelock.kt: (8, 16): Redeclaration: Wakelock
e: D:\flutter\.pub-cache\hosted\pub.dartlang.org\wakelock-0.4.0\android\src\main\kotlin\creativemaybeno\wakelock\Wakelock.kt: (41, 7): Redeclaration: NoActivityException        
e: D:\flutter\.pub-cache\hosted\pub.dartlang.org\wakelock-0.5.3+3\android\src\main\kotlin\creativemaybeno\wakelock\Wakelock.kt: (8, 16): Redeclaration: Wakelock
e: D:\flutter\.pub-cache\hosted\pub.dartlang.org\wakelock-0.5.3+3\android\src\main\kotlin\creativemaybeno\wakelock\Wakelock.kt: (41, 7): Redeclaration: NoActivityException      

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':wakelock:compileDebugKotlin'.
> 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 24s

Answer 1

删除pubspec.lock并运行flutter pub get。

基本上，由于video_editor使用video_player的v2.1.12作为依赖项而导致版本不匹配，而后者又使用了系外播放器。

这是一个简单的方法。

另一种选择是使用依赖覆盖，但这不安全

dependency_overrides:
  video_player: 2.1.13

依赖项重写https://dart.dev/tools/pub/dependencies#dependency-overrides的参考文档

Answer 2

这对我有用。

1. flutter clean

2. flutter run