Flutter3 × Audioplayers で音源が再生できません

import 'package:audioplayers/audioplayers.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  final player = AudioPlayer();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: ElevatedButton(
          onPressed: () async {
            await player.play(
              DeviceFileSource('assets/audios/note2.wav'),
            ); // will immediately start playing
          },
          child: Text('Click Me!'),
        ),
      ),
    );
  }
}

name: smart_xylophone
description: A new Flutter project.

publish_to: 'none' # Remove this line if you wish to publish to pub.dev

version: 1.0.0+1

environment:
  sdk: ">=2.17.1 <3.0.0"

dependencies:
  flutter:
    sdk: flutter

  cupertino_icons: ^1.0.2
  audioplayers: ^1.0.1


dev_dependencies:
  flutter_test:
    sdk: flutter

  flutter_lints: ^2.0.0

flutter:

  uses-material-design: true

  assets:
    - assets/audios/

Performing hot restart...
Syncing files to device Android SDK built for arm64...
Restarted application in 935ms.
V/MediaPlayer( 7675): resetDrmState:  mDrmInfo=null mDrmProvisioningThread=null mPrepareDrmInProgress=false mActiveDrmScheme=false
V/MediaPlayer( 7675): cleanDrmObj: mDrmObj=null mDrmSessionId=null
D/AudioPlayers( 7675): Unexpected error!
D/AudioPlayers( 7675): java.io.IOException: setDataSource failed.
D/AudioPlayers( 7675): 	at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1191)
D/AudioPlayers( 7675): 	at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1164)
D/AudioPlayers( 7675): 	at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1131)
D/AudioPlayers( 7675): 	at xyz.luan.audioplayers.source.UrlSource.setForMediaPlayer(UrlSource.kt:16)
D/AudioPlayers( 7675): 	at xyz.luan.audioplayers.player.MediaPlayerPlayer.setSource(MediaPlayerPlayer.kt:52)
D/AudioPlayers( 7675): 	at xyz.luan.audioplayers.player.WrappedPlayer.setSource(WrappedPlayer.kt:29)
D/AudioPlayers( 7675): 	at xyz.luan.audioplayers.AudioplayersPlugin.handler(AudioplayersPlugin.kt:87)
D/AudioPlayers( 7675): 	at xyz.luan.audioplayers.AudioplayersPlugin.access$handler(AudioplayersPlugin.kt:23)
D/AudioPlayers( 7675): 	at xyz.luan.audioplayers.AudioplayersPlugin$onAttachedToEngine$1$1.invoke(AudioplayersPlugin.kt:39)
D/AudioPlayers( 7675): 	at xyz.luan.audioplayers.AudioplayersPlugin$onAttachedToEngine$1$1.invoke(AudioplayersPlugin.kt:39)
D/AudioPlayers( 7675): 	at xyz.luan.audioplayers.AudioplayersPlugin$safeCall$1.invokeSuspend(AudioplayersPlugin.kt:58)
D/AudioPlayers( 7675): 	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
D/AudioPlayers( 7675): 	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
D/AudioPlayers( 7675): 	at kotlinx.coroutines.internal.LimitedDispatcher.run(LimitedDispatcher.kt:39)
D/AudioPlayers( 7675): 	at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:95)
D/AudioPlayers( 7675): 	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:571)
D/AudioPlayers( 7675): 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
D/AudioPlayers( 7675): 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:678)
D/AudioPlayers( 7675): 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:665)
E/flutter ( 7675): [ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled Exception: PlatformException(Unexpected error!, setDataSource failed., java.io.IOException: setDataSource failed.
E/flutter ( 7675): 	at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1191)
E/flutter ( 7675): 	at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1164)
E/flutter ( 7675): 	at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1131)
E/flutter ( 7675): 	at xyz.luan.audioplayers.source.UrlSource.setForMediaPlayer(UrlSource.kt:16)
E/flutter ( 7675): 	at xyz.luan.audioplayers.player.MediaPlayerPlayer.setSource(MediaPlayerPlayer.kt:52)
E/flutter ( 7675): 	at xyz.luan.audioplayers.player.WrappedPlayer.setSource(WrappedPlayer.kt:29)
E/flutter ( 7675): 	at xyz.luan.audioplayers.AudioplayersPlugin.handler(AudioplayersPlugin.kt:87)
E/flutter ( 7675): 	at xyz.luan.audioplayers.AudioplayersPlugin.access$handler(AudioplayersPlugin.kt:23)
E/flutter ( 7675): 	at xyz.luan.audioplayers.AudioplayersPlugin$onAttachedToEngine$1$1.invoke(AudioplayersPlugin.kt:39)
E/flutter ( 7675): 	at xyz.luan.audioplayers.AudioplayersPlugin$onAttachedToEngine$1$1.invoke(AudioplayersPlugin.kt:39)
E/flutter ( 7675): 	at xyz.luan.audioplayers.AudioplayersPlugin$safeCall$1.invokeSuspend(AudioplayersPlugin.kt:58)
E/flutter ( 7675): 	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
E/flutter ( 7675): 	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
E/flutter ( 7675): 	at kotlinx.coroutines.internal.LimitedDispatcher.run(LimitedDispatcher.kt:39)
E/flutter ( 7675): 	at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:95)
E/flutter ( 7675): 	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:571)
E/flutter ( 7675): 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
E/flutter ( 7675): 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:678)
E/flutter ( 7675): 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:665)
E/flutter ( 7675): , null)
E/flutter ( 7675): #0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:607:7)
E/flutter ( 7675): #1      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:167:18)
E/flutter ( 7675): <asynchronous suspension>
E/flutter ( 7675): #2      AudioPlayer.play (package:audioplayers/src/audioplayer.dart:111:5)
E/flutter ( 7675): <asynchronous suspension>
E/flutter ( 7675): #3      _MyHomePageState.build.<anonymous closure> (package:smart_xylophone/main.dart:45:13)
E/flutter ( 7675): <asynchronous suspension>
E/flutter ( 7675):