Discord.js - TypeError：“侦听器”参数必须是一个函数

Question

这是我不和谐的机器人代码：

const Discord = require('discord.js');
const client = new Discord.Client();
const token = require('./settings.json').token;

client.on('ready',() => {
    console.log('\n\nI\'m Online, mate.\nVery online, indeed.\n');
});
// Showing (in console) that the bot is online.



var prefix = "-"
client.on('message', message => { // Messaging stuff - Chat commands etc.

    if (!message.content.startsWith(prefix)) return;

    console.log('A command was found.')

    let args = message.content.split(' ').slice(1);
    var argresult = args.join(' ');

    if (message.author.bot) return;
    // If bot is the author (prevent selfbot.)



    if (message.content.startsWith(prefix + 'moffa')) { // Checks if bot is online and shows latency.
        message.channel.send(`**MOFFA!!** \`${Date.now() - message.createdTimestamp} ms delay.\``);
    } else



    if (message.content.startsWith(prefix + 'moos')) { // Cross-server messaging.
        client.channels.get('censored').send('Cross-channel typing is working, yes.');
        message.channel.send('Look in <#censored>.')
    } else



    if (message.content.startsWith(prefix + 'sg')) { // Set game.
        if (!argresult) argresult = null;
        client.user.setActivity(argresult)
        message.channel.send('Set `' + argresult + '` as activity.')
    } else



    if (message.content.startsWith(prefix + 'ss')) { // Set status.
        if(!argresult) argresult = 'online';
        client.user.setStatus(argresult);
        message.channel.send('Updated status.')
    } else



    if (message.content.startsWith(prefix + 'fnname')) { // Sends censored's name on Fortnite.
        message.channel.send('`censored` is <@!censored>\'s name on Fortnite');
    } else



    if (message.content.startsWith(prefix + 'commands')) { // Shows a message with all commands. Update manually.
        message.channel.send('All the current commands are: `moffa`, `fnname` & `commands`. Ex. use: `' + prefix + 'moffa`.');
    }
});


client.login(token);

我知道这个错误：

PS C:\Users\censored\Documents\Code\nodejs\discord bot 2> nodemon
[nodemon] 1.17.1
[nodemon] to restart at any time, enter `rs`
[nodemon] watching: *.*
[nodemon] starting `node app.js`
events.js:239
    throw new TypeError('"listener" argument must be a function');
    ^

TypeError: "listener" argument must be a function
    at _addListener (events.js:239:11)
    at Client.addListener (events.js:297:10)
    at Object.<anonymous> (C:\Users\censored\Documents\Code\nodejs\discord bot 2\app.js:7:8)
    at Module._compile (module.js:643:30)
    at Object.Module._extensions..js (module.js:654:10)
    at Module.load (module.js:556:32)
    at tryModuleLoad (module.js:499:12)
    at Function.Module._load (module.js:491:3)
    at Function.Module.runMain (module.js:684:10)
    at startup (bootstrap_node.js:187:16)
[nodemon] app crashed - waiting for file changes before starting...

它没有指定错误在哪里，也没有指定如何修复错误。

我正在使用Atom (最新版本)。Nodemon允许我在每次刷新机器人时绕开和关闭终端。它工作得很好，直到我尝试制作一个丰富的embed命令。当我删除命令时，我得到了这个错误。嗯，我也在做的时候拿到了。

的帮助将不胜感激。谢谢！

Answer 1

这部分错误清楚地说明了错误发生在第七行。

    at Object.<anonymous> (C:\Users\censored\Documents\Code\nodejs\discord bot 2\app.js:7:8)

在第7行有client.on('')，它需要第二个参数作为函数。

而且，在这一行中也没有您正在收听的事件。