Node.js Discord Bot TypeError：无法读取未定义的“语音”属性

Question

这是我的整个命令代码，问题是当我这样做时 - 移动所有人 123132123123（例如频道 ID）。该命令完美运行，但给我一个错误(node:317) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'voice' of undefined。我一直在尝试.catch() 错误，但它仍然给我这个错误。每当我做return member.voice.setChannel(`${move}`);。错误停止了，但也只是出于某种原因让我感动......

if (command === 'move') {
  if (!message.member.permissions.has("MOVE_MEMBERS")) return message.channel.send(':x: **You do not have the permission to use this command!**');
  const args = message.content.slice(prefix.length).trim().split(/ +/g);
  const command = args.shift().toLowerCase();
  const mem = message.mentions.members.first()
  let move = args[1]; // Remember arrays are 0-based!.
  let move2 = args[2];
  let idcheckchannel1 = client.channels.cache.get(move)
  let idcheckchannel2 = client.channels.cache.get(move2)
  if (!args[0]) return message.channel.send('Please mention user and voice channel ID/IDs')
  if (!args[1]) return message.channel.send('Please mention voice channel ID/IDs')

  if(args[0] === 'everyone' && !move2) {
    if (!idcheckchannel1) return message.channel.send('Please use a valid voice channel ID')
    let channel = message.guild.channels.cache.get(message.member.voice.channel.id);
    for (const [memberID, member] of channel.members)
      member.voice.setChannel(`${move}`);
  }

  if (!mem.voice.channel) return message.channel.send('User is not in voice channel')

  if (!move2) {
    if (!idcheckchannel1) return message.channel.send('Please use a valid voice channel ID')
    mem.voice.setChannel(`${move}`)
  } else {
    if (!idcheckchannel1) return message.channel.send('Please use a valid voice channel ID')
    if (!idcheckchannel2) return message.channel.send('Please use a valid voice channel ID')
    mem.voice.setChannel(`${move}`)
    mem.voice.setChannel(`${move2}`)
  }
}

Answer 1

如果message.mentions.members 为空，则mem 可能是undefined。在使用mem之前，您应该检查它是否未定义。

试试这个：

if (command === 'move') {
  if (!message.member.permissions.has("MOVE_MEMBERS")) return message.channel.send(':x: **You do not have the permission to use this command!**');
  const args = message.content.slice(prefix.length).trim().split(/ +/g);
  const command = args.shift().toLowerCase();
  const mem = message.mentions.members.first()
  let move = args[1]; // Remember arrays are 0-based!.
  let move2 = args[2];
  let idcheckchannel1 = client.channels.cache.get(move)
  let idcheckchannel2 = client.channels.cache.get(move2)
  if (!args[0]) return message.channel.send('Please mention user and voice channel ID/IDs')
  if (!args[1]) return message.channel.send('Please mention voice channel ID/IDs')

  if(args[0] === 'everyone' && !move2) {
    if (!idcheckchannel1) return message.channel.send('Please use a valid voice channel ID')
    let channel = message.guild.channels.cache.get(message.member.voice.channel.id);
    for (const [memberID, member] of channel.members)
      member.voice.setChannel(`${move}`);
  }

  if (mem != null) { // << ensure that mem is not undefined
    if (!mem.voice.channel) return message.channel.send('User is not in voice channel')

    if (!move2) {
      if (!idcheckchannel1) return message.channel.send('Please use a valid voice channel ID')
      mem.voice.setChannel(`${move}`)
    } else {
      if (!idcheckchannel1) return message.channel.send('Please use a valid voice channel ID')
      if (!idcheckchannel2) return message.channel.send('Please use a valid voice channel ID')
      mem.voice.setChannel(`${move}`)
      mem.voice.setChannel(`${move2}`)
    }
  }
}

Answer 2

channel.members 返回Collection，而不是Array，因此数组解构将不起作用。即使是这样，每个元素的第一个属性也不是memberID 和member。

此外，您创建了一个新的 channel 变量，即使您已经拥有通道对象。

// let channel = message.guild.channels.cache.get(message.member.voice.channel.id);
// for (const [memberID, member] of channel.members)
//  member.voice.setChannel(`${move}`);
// };

for (const member of message.member.voice.channel.members) 
 member.voice.setChannel(move);