为什么在 Flutter 运行后出现此错误？

Question

在我运行 flutter 项目后，我收到以下 Build failed 异常。

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:checkDebugDuplicateClasses'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.CheckDuplicatesRunnable
   > Duplicate class com.google.android.exoplayer2.ui.DownloadNotificationHelper found in modules jetified-exoplayer-core-2.17.0-runtime (com.google.android.exoplayer:exoplayer-core:2.17.0) and jetified-exoplayer-ui-2.15.1-runtime (com.google.android.exoplayer:exoplayer-ui:2.15.1)

     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 3m 26s
Running Gradle task 'assembleDebug'...                            208.9s
Exception: Gradle task assembleDebug failed with exit code 1

我目前正在使用 Flutter 的最新版本，即 2.10.1 版。 同样在我的项目中，我使用了“better_player”酒吧 package。

请给我一个解决方案。

Answer 1

在文件末尾的依赖项中的 app/build.gradle 中添加以下依赖项 -

实施 'com.google.android.exoplayer:exoplayer:2.17.0'

例子 -

dependencies {

    ...

    implementation 'com.google.android.exoplayer:exoplayer:2.17.0'

}

Answer 2

第一：如果你使用 video_player 在你的 app/build.gradle 添加这一行

implementation 'com.google.android.exoplayer:exoplayer:2.17.1'

第二：如果你使用 better_player 在你的 app/build.gradle 添加这一行

implementation 'com.google.android.exoplayer:exoplayer:2.15.0'

第三：如果您同时使用video_player和better_player ，则应在 pubspec.yaml 中将video_player版本降级为 2.1.12