无法读取未定义的属性“发送”(Discord.js)
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【中文标题】无法读取未定义的属性“发送”(Discord.js)【英文标题】:Cannot read property 'send' of undefined(Discord.js) 【发布时间】:2021-04-16 21:41:04 【问题描述】:抱歉打扰各位了。我写了一段代码,但我认为这段代码有问题,因为我是 js 和 discord.js 的新手。 感谢任何帮助 (我也看了一些其他问题,但找不到像我这样的例子)
const Discord = require('discord.js');
module.exports =
name: "ping",
description: "Returns latency and API ping",
execute:
async (client, message, args) =>
try
const msg = await message.channel.send(`???? Pinging....`);
msg.edit(`???? Pong!
latency $Math.floor(msg.createdTimestap - message.createdTimestap)ms
API latency $Math.round(client.ping)ms`);
catch(e)console.log(e)```
这是控制台:
at Object.execute (C:\Users\berke\Desktop\RedBot\commands\ping.js:10:43)
at Client.<anonymous> (C:\Users\berke\Desktop\RedBot\bot.js:77:35)
at Client.emit (events.js:327:22)
at MessageCreateAction.handle (C:\Users\berke\Desktop\RedBot\node_modules\discord.js\src\client\actions\MessageCreate.js:31:14)
at Object.module.exports [as MESSAGE_CREATE] (C:\Users\berke\Desktop\RedBot\node_modules\discord.js\src\client\websocket\handlers\MESSAGE_CREATE.js:4:32)
at WebSocketManager.handlePacket (C:\Users\berke\Desktop\RedBot\node_modules\discord.js\src\client\websocket\WebSocketManager.js:384:31)
at WebSocketShard.onPacket (C:\Users\berke\Desktop\RedBot\node_modules\discord.js\src\client\websocket\WebSocketShard.js:444:22)
at WebSocketShard.onMessage (C:\Users\berke\Desktop\RedBot\node_modules\discord.js\src\client\websocket\WebSocketShard.js:301:10)
at WebSocket.onMessage (C:\Users\berke\Desktop\RedBot\node_modules\ws\lib\event-target.js:132:16)
at WebSocket.emit (events.js:315:20)
【问题讨论】:
错误准确地说明了问题所在。由于某些原因,message.channel
为空。
如错误所示:channel
属性为 undefined
,无论出于何种原因。如果您不希望您的应用程序中断,您可以检查是否定义了 channel
对象属性,然后使用它的键,如下所示:const msg = await (message.channel && message.channel.send('???? Pinging....'));
您是否将正确的东西传递给message
参数?
【参考方案1】:
正如评论者所指出的,您在函数中收到的消息没有频道属性。
您可以调试您的应用程序并在执行时查看参数的值,或者您可以console.log()
它们并对其进行测试以更好地了解正在发生的事情。
如果您遵循 Discord.js' 文档中的指南,您可能需要查看此 repository,它显示了动态执行命令的工作示例。
出于 *** 的目的,我将从下面的仓库中粘贴相关代码:
index.js
const fs = require('fs');
const Discord = require('discord.js');
const prefix, token = require('./config.json');
const client = new Discord.Client();
client.commands = new Discord.Collection();
const commandFiles = fs.readdirSync('./commands').filter(file => file.endsWith('.js'));
for (const file of commandFiles)
const command = require(`./commands/$file`);
client.commands.set(command.name, command);
client.once('ready', () =>
console.log('Ready!');
);
client.on('message', message =>
if (!message.content.startsWith(prefix) || message.author.bot) return;
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!');
);
commands/ping.js
module.exports =
name: 'ping',
description: 'Ping!',
execute(message)
message.channel.send('Pong.');
config.json
"prefix": "!",
"token": "your-token-goes-here"
【讨论】:
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