discord.js 不播放音频文件

I am trying to play an audio file but, for some reason it's not playing anything, it's firing end event instead of start event, right after the bot is connected to voice channel.

client.on('message', message => {
      if(message.content.startsWith('!play')) {

      if(!message.member.voiceChannel) return message.channel.send('connect to voice channel first');

      message.member.voiceChannel.join()
        .then(connection => { 

            console.log("Joined voice channel!");

            const dispatcher = connection.playFile(require("path").join(__dirname, './myfile.mp3'));

            dispatcher.on('start', () => { //not working
                dispatcher.setVolume(0.70);
                console.log("Playing");
            }); 

            dispatcher.on('error', (err) => console.log(err)); //no errors

            dispatcher.on('end', end => { //working fine
                console.log("Finished");
                console.log("End: " + end);
                message.member.voiceChannel.leave()
            });
        });

}});

推荐答案

我从 node-modules 中删除了 ffmpeg-binaries 并安装了 ffmpeg使用 sudo apt 现在工作正常.问题是，我安装了这两个库.