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ユーザーがボタンをクリックするとタイマーが開始され、ユーザーが設定した時間後 just_audio: ^0.6.15+1 にフラッタープロジェクトで使用しているサウンドが再生されるプロジェクトを作成していますが、以下の多くの問題がエラーになります。

D/Linux   (21303): [Posix_connect Debug]Process com.snss.xlnc :443 
E/flutter (21303): [ERROR:flutter/lib/ui/ui_dart_state.cc(186)] Unhandled Exception: Connection aborted
E/flutter (21303): #0      AudioPlayer._load (package:just_audio/just_audio.dart:688:11)
E/flutter (21303): <asynchronous suspension>
E/flutter (21303): #1      AudioPlayer.load (package:just_audio/just_audio.dart:625:14)
E/flutter (21303): <asynchronous suspension>
E/flutter (21303): #2      AudioPlayer.setAudioSource (package:just_audio/just_audio.dart:602:18)
E/flutter (21303): <asynchronous suspension>
E/flutter (21303): #3      _ClassStartState.keepRunning (package:xlnc/tutor/startClass.dart:84:7)
E/flutter (21303): <asynchronous suspension>
E/flutter (21303):

これは私のコードです

var t = DateFormat.Hms().parse(time);
var rT = DateFormat.Hms().parse(remTime);
var co = t.isAfter(rT);

if (co) {
  player.setUrl('$soundUrl');
  player.setVolume(1);
  player.play();
  player.setLoopMode(LoopMode.one);
}

これは私のフラッタードクターです -v

[√] Flutter (Channel stable, 2.0.1, on Microsoft Windows [Version 10.0.19042.804], locale en-IN)
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[√] Android Studio (version 4.1.0)
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    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)

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