javascript - discord.js v13 permissions.has() 函数不工作(TypeError : Cannot read properties of undefined (reading 'has' ))

Question

我想为我的 Discord 机器人编写一个 ban 命令。我有这一行，机器人应该检查用户是否具有管理员权限。如果应该被禁止的用户拥有它们，则机器人不会禁止用户并崩溃。当我尝试运行这个命令时，我得到了这个:

TypeError: Cannot read properties of undefined (reading 'has')

我不明白为什么。我问的人都帮不了我，我在网上什么也找不到，所以我希望能在这里找到帮助。

我的代码:

const discord = require('discord.js');
const { Permissions } = require('discord.js');

module.exports.run = async (Client, message, args) => {
  if (!message.member.roles.cache.some(role => role.id == 589850931785498624)) {
    return message.reply("You don't have the perms.");
  }

  const mention = message.mentions.users.first();

  if (!mention) {
    return message.reply('You need to tag a user!');
  }

  if (mention.permissions.has(Permissions.FLAGS.MANAGE_CHANNELS)) {
    return message.reply("You can't ban an Administrator!")
  }

  //message.guild.members.ban(mention);
}

module.exports.help = {
  name: "ban",
  aliases: ["b"],
}

Answer 1

“TypeError: Cannot read properties of undefined (reading 'has')” 表示 mention.permissions 是 undefined。这是因为您的 mention 变量是 User并且只有 GuildMember 有 permissions .

另一个错误是您尝试检查 role.id 是否等于数字/整数但是雪花(如 589850931785498624)should always be strings因为这些大于 MAX_SAFE_INTEGER .

module.exports.run = async (Client, message, args) => {
  if (!message.member.roles.cache.some((role) => role.id == '589850931785498624'))
    return message.reply("You don't have the perms.");

  const mentionedMember = message.mentions.members.first();

  if (!mentionedMember)
    return message.reply('You need to tag a user!');

  if (mentionedMember.permissions.has(Permissions.FLAGS.MANAGE_CHANNELS))
    return message.reply("You can't ban an Administrator!");

  message.guild.members.ban(mentionedMember);
};