不和谐音频播放器

Question

当我的个人服务器的文本通道中写入一个单词时，希望机器人播放预定的音频文件。遇到麻烦，因为它正在阅读消息，运行代码，但当我真的在语音频道时却找不到我。有加入权限，不知道为什么它不起作用。

编辑：新代码

var Discord = require('discord.js');
const { waitForDebugger } = require('inspector');
var bot = new Discord.Client();
var isReady = true;
const path = require('path');
const ytdl = require('ytdl-core');

bot.on('guildMemberAdd', guildMember =>{
  let welcomeRole = guildMember.guild.roles.cache.find(role => role.name === 'Average Bread');

  guildMember.roles.add(welcomeRole);
  console.log('Role Assigned');
});

bot.once('ready', () => {
  console.log('Bot is Online');
});

bot.on('message', message => {
  const args = message.content.split(/ +/);
  const command = args.shift().toLowerCase();
  var VC = message.member.voice.channel;

  if (command === "join") {
      if (!VC) return message.reply("You are not in a voice channel.")
      VC.join()
          .then(connection => {
            message.channel.send('Joining Channel');
            var stream  = ytdl('https://www.youtube.com/watch?v=U06jlgpMtQs')
            connection.play(stream, {seek: 0, volume: 1});
            console.log('Joining')
          })
          .catch(console.error);
        }
  else if (command === "leave") {
  VC.leave()
    message.channel.send('Leaving channel');
    console.log('Leaving');
  }});

bot.login('token');