我在运行我的 flutter 应用程序时发现了 gradle 这个错误

Question

That is the error when i run my app i need some help

i add liberary

just_audio:0:9:31

and i found this error and didn't run

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-2.18.1-runtime (com.google.android.exoplayer:exoplayer-core:2.18.1) and jetified-exoplayer-ui-2.11.1-runtime (com.google.android.exoplayer:exoplayer-ui:2.11.1)
     Duplicate class com.google.android.exoplayer2.ui.package-info found in modules jetified-exoplayer-common-2.18.1-runtime (com.google.android.exoplayer:exoplayer-common:2.18.1) and jetified-exoplayer-ui-2.11.1-runtime (com.google.android.exoplayer:exoplayer-ui:2.11.1)

     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 15s
Exception: Gradle task assembleDebug failed with exit code 1```



i expect to find some advice to solve it

Answer 1

in your android/app/build.gradle , try adding those dependencies:

dependencies {
    // ...
    def exoplayer_version = "2.18.1" // this is the version 
    implementation "com.google.android.exoplayer:exoplayer-core:$exoplayer_version"
    implementation "com.google.android.exoplayer:exoplayer-dash:$exoplayer_version"
    implementation "com.google.android.exoplayer:exoplayer-hls:$exoplayer_version"
    implementation "com.google.android.exoplayer:exoplayer-smoothstreaming:$exoplayer_version"
}

save and re build your app.