Javascript Discord Bot:addRoles不存在，但在文档中列出是否存在？

我正在为服务器开发一个小型Discord机器人。当用户加入时，它意味着向他们致意并添加两个角色。没有角色部分，它就可以工作

表示函数存在

我得到这个错误：

at DiscordClient.bot.on (C:\Users\Dialg\Documents\coding\discord_bots\millybot\bot.js:89:9)
    at DiscordClient.emit (events.js:198:13)
    at emit (C:\Users\Dialg\Documents\coding\discord_bots\millybot\node_modules\discord.io\lib\index.js:1580:14)
    at DiscordClient.handleWSMessage (C:\Users\Dialg\Documents\coding\discord_bots\millybot\node_modules\discord.io\lib\index.js:1904:11)
    at WebSocket.emit (events.js:198:13)
    at Receiver.ontext (C:\Users\Dialg\Documents\coding\discord_bots\millybot\node_modules\ws\lib\WebSocket.js:841:10)
    at C:\Users\Dialg\Documents\coding\discord_bots\millybot\node_modules\ws\lib\Receiver.js:536:18
    at Receiver.applyExtensions (C:\Users\Dialg\Documents\coding\discord_bots\millybot\node_modules\ws\lib\Receiver.js:371:5)
    at C:\Users\Dialg\Documents\coding\discord_bots\millybot\node_modules\ws\lib\Receiver.js:508:14
    at Receiver.flush (C:\Users\Dialg\Documents\coding\discord_bots\millybot\node_modules\ws\lib\Receiver.js:347:3)```

addRole or strings do not work.


```// Message to new users
bot.on('guildMemberAdd', (member) => {
    let guild = member.guild;

    bot.sendMessage({
        to: "620583787142578185",
        message: "Long message"
    });

    // Adds Nicknames + Reader to the user
    member.addRoles(['594831071376572417', '541669344497631233']).catch(ConsoleError);
});

---

addRole有效吗？您是否使用

master

？是否使用字符串进行了尝试？像这样：

member.addRoles（['594831071376572417'，'541669344497631233']）

addRole和字符串都不起作用。大师是什么？