Discord 嘗試添加角色時出現機器人錯誤

Question

嘗試制作“靜音命令”時出現 TypeError: Cannot read property 'add' of undefined 如果你能幫助我謝謝:)

module.exports = {
    name: 'mute',
    description: 'f',
    execute(message, args) {
        const taggedUser = message.mentions.users.first();
        const mutedRole = "800612654234337281"
        if (!message.mentions.users.size) {
            return message.reply(`Oh, thats unexpected you haven't tagged anyone.`);
        }
        message.channel.send(`${taggedUser} has been muted`);
        taggedUser.roles.add(mutedRole);
         
    },
};

如果有問題，這里是“主文件”

const fs = require('fs');
const Discord = require('discord.js');
const client = new Discord.Client();
const { prefix, token } = require('./config.json');
client.commands = new Discord.Collection();
const commandFiles = fs.readdirSync('./commands').filter(file => file.endsWith('.js'));
for (const file of commandFiles) {
    const command = require(`./commands/${file}`);
    client.commands.set(command.name, command);
}

client.once('ready', () => {
    console.log('Online');
});

client.on('message', message => {
    const args = message.content.slice(prefix.length).trim().split(' ');
    const command = args.shift().toLowerCase();
    if (!client.commands.has(command)) return;

    try {
        client.commands.get(command).execute(message, args);
    } catch (error) {
        console.error(error);
        message.reply('there was an error trying to execute that command!');
    }
});
client.login(token);

Answer 1

這將不起作用，因為 discord 用戶和公會成員都是完全不同的方法。 您不能在任何公會中為 discord 用戶添加角色（除非您的機器人在上述公會中），您只能向公會成員添加角色。
代替：

message.mentions.users.first()

和：

message.mentions.members.first()

學習更多關於：
Discord 用戶
公會成員