Trying to play multiple audio files one by one with one audio player object. But if I don't initalize it again before playing it gives this error

[Aneess333]

E/MediaPlayerNative( 8096): attachNewPlayer called in state 4
D/AudioPlayers( 8096): Unexpected error!
D/AudioPlayers( 8096): java.lang.IllegalStateException
D/AudioPlayers( 8096): 	at android.media.MediaPlayer._setDataSource(Native Method)
D/AudioPlayers( 8096): 	at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1301)
D/AudioPlayers( 8096): 	at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1284)
D/AudioPlayers( 8096): 	at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1241)
D/AudioPlayers( 8096): 	at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1218)
D/AudioPlayers( 8096): 	at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1183)
D/AudioPlayers( 8096): 	at xyz.luan.audioplayers.source.UrlSource.setForMediaPlayer(UrlSource.kt:16)
D/AudioPlayers( 8096): 	at xyz.luan.audioplayers.player.MediaPlayerPlayer.setSource(MediaPlayerPlayer.kt:51)
D/AudioPlayers( 8096): 	at xyz.luan.audioplayers.player.WrappedPlayer.setSource(WrappedPlayer.kt:29)
D/AudioPlayers( 8096): 	at xyz.luan.audioplayers.AudioplayersPlugin.handler(AudioplayersPlugin.kt:87)
D/AudioPlayers( 8096): 	at xyz.luan.audioplayers.AudioplayersPlugin.access$handler(AudioplayersPlugin.kt:23)
D/AudioPlayers( 8096): 	at xyz.luan.audioplayers.AudioplayersPlugin$onAttachedToEngine$1$1.invoke(AudioplayersPlugin.kt:39)
D/AudioPlayers( 8096): 	at xyz.luan.audioplayers.AudioplayersPlugin$onAttachedToEngine$1$1.invoke(AudioplayersPlugin.kt:39)
D/AudioPlayers( 8096): 	at xyz.luan.audioplayers.AudioplayersPlugin$safeCall$1.invokeSuspend(AudioplayersPlugin.kt:58)
D/AudioPlayers( 8096): 	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
D/AudioPlayers( 8096): 	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
D/AudioPlayers( 8096): 	at kotlinx.coroutines.internal.LimitedDispatcher.run(LimitedDispatcher.kt:39)
D/AudioPlayers( 8096): 	at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:95)
D/AudioPlayers( 8096): 	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:571)
D/AudioPlayers( 8096): 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
D/AudioPlayers( 8096): 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:678)
D/AudioPlayers( 8096): 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:665)
E/flutter ( 8096): [ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: PlatformException(Unexpected error!, null, java.lang.IllegalStateException
E/flutter ( 8096): 	at android.media.MediaPlayer._setDataSource(Native Method)
E/flutter ( 8096): 	at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1301)
E/flutter ( 8096): 	at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1284)
E/flutter ( 8096): 	at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1241)
E/flutter ( 8096): 	at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1218)
E/flutter ( 8096): 	at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1183)
E/flutter ( 8096): 	at xyz.luan.audioplayers.source.UrlSource.setForMediaPlayer(UrlSource.kt:16)
E/flutter ( 8096): 	at xyz.luan.audioplayers.player.MediaPlayerPlayer.setSource(MediaPlayerPlayer.kt:51)
E/flutter ( 8096): 	at xyz.luan.audioplayers.player.WrappedPlayer.setSource(WrappedPlayer.kt:29)
E/flutter ( 8096): 	at xyz.luan.audioplayers.AudioplayersPlugin.handler(AudioplayersPlugin.kt:87)
E/flutter ( 8096): 	at xyz.luan.audioplayers.AudioplayersPlugin.access$handler(AudioplayersPlugin.kt:23)
E/flutter ( 8096): 	at xyz.luan.audioplayers.AudioplayersPlugin$onAttachedToEngine$1$1.invoke(AudioplayersPlugin.kt:39)
E/flutter ( 8096): 	at xyz.luan.audioplayers.AudioplayersPlugin$onAttachedToEngine$1$1.invoke(AudioplayersPlugin.kt:39)
E/flutter ( 8096): 	at xyz.luan.audioplayers.AudioplayersPlugin$safeCall$1.invokeSuspend(AudioplayersPlugin.kt:58)
E/flutter ( 8096): 	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
E/flutter ( 8096): 	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
E/flutter ( 8096): 	at kotlinx.coroutines.internal.LimitedDispatcher.run(LimitedDispatcher.kt:39)
E/flutter ( 8096): 	at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:95)
E/flutter ( 8096): 	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:571)
E/flutter ( 8096): 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
E/flutter ( 8096): 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:678)
E/flutter ( 8096): 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:665)
E/flutter ( 8096): , null)
E/flutter ( 8096): #0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:607:7)
E/flutter ( 8096): #1      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:177:18)
E/flutter ( 8096): <asynchronous suspension>
E/flutter ( 8096): #2      AudioPlayer.play (package:audioplayers/src/audioplayer.dart:111:5)
E/flutter ( 8096): <asynchronous suspension>
E/flutter ( 8096): #3      AudioBloc._onAudioPicking (package:task4/blocs/audio_bloc/audio_bloc.dart:130:7)
E/flutter ( 8096): <asynchronous suspension>
E/flutter ( 8096): #4      Bloc.on.<anonymous closure>.handleEvent (package:bloc/src/bloc.dart:211:13)
E/flutter ( 8096): <asynchronous suspension>
E/flutter ( 8096): 

[Aneess333]

If i initalize it again then I can't access it onChange methods in bloc. Because of that I can't access total time and it's remaining time.

[Gustl22]

Can you reproduce it with the example or do you have some sample project? What are the exact steps to reproduce? Also use the issue template!

[plato79]

I'm also getting this error. Although, I'm only playing one file at a time. I execute audioplayer.stop then execute .play for another file after that.

The thing is it doesn't happen always, most of the time there's no problem but sometimes I get this error, and of course there's no audio playing.

My code is like this:

This part executes on next/prev button:

       if (isPlaying) stopPlaying();
       playAudio();

  void playAudio() async {
    if (audioQuestion!.getAudio(language) != '') {
      audioPlayer
          .play(
        UrlSource(await audioUrl(audioSource!.getAudio())),
      )
          .then((value) {
        setState(() => isPlaying = true);
      }).onError((error, stackTrace) {
        if (kDebugMode) {
          print(error.toString());
        }
      });
    }
  }

I pull audioUrl via cachemanager that's why there's an await on audioUrl.

  void stopPlaying() {
    if (isPlaying) {
      audioPlayer
          .stop()
          .then((_) => setState(() => isPlaying = false))
          .onError((error, stackTrace) {
        if (kDebugMode) {
          print(error.toString());
        }
      });
    }
  }

[Gustl22]

Can you test with current main branch in pubspec.yaml?

dependency_overrides:
  audioplayers:
    git:
      url: https://github.com/bluefireteam/audioplayers.git
      path: 'packages/audioplayers'
  audioplayers_platform_interface:
    git:
      url: https://github.com/bluefireteam/audioplayers.git
      path: 'packages/audioplayers_platform_interface'
  audioplayers_web:
    git:
      url: https://github.com/bluefireteam/audioplayers.git
      path: 'packages/audioplayers_web'
  audioplayers_linux:
    git:
      url: https://github.com/bluefireteam/audioplayers.git
      path: 'packages/audioplayers_linux'
  audioplayers_android:
    git:
      url: https://github.com/bluefireteam/audioplayers.git
      path: 'packages/audioplayers_android'

[plato79]

found out the problem was mine. On the flutter discord server Xazin helped me to solve the problem. I was stopping playback and starting another one immediately after. But it seems stop takes time and had to wait for it.. So await stopPlayback() then await playAudio() worked.

[github-actions]

This issue was closed by the stale bot due to inactivity.