javascript - 为什么 .get() 在我的不和谐机器人代码中不起作用？

Question

我正在尝试更改 channel 名称以显示公会中的用户数量。但是，当我启动我的机器人时，它会在控制台中显示以下内容:

Cannot read property 'edit' of undefined

我将问题缩小到这一行:bot.channels.get("533334637163053077");

以防万一你需要它，这是我的代码:

const Discord=require('discord.js');
const fs = require("fs");
const bot = new Discord.Client();
const PREFIX = "-";
const guildID = "418505146876559371";
let ref = require("./ref.json");
let request = require(`request`);
const memberCountChannel = bot.channels.get("533334637163053077"); //This one is the one
//that is not working I think
bot.commands = new Discord.Collection();

var servers = {};

bot.on('warn', console.warn);
bot.on('error', console.error);

bot.on('ready', function(guild)
{
    console.log(`${bot.user.username} is online with ${bot.users.size} 
    members.\n\n\n\n\n\n\n\n\n`);
    bot.user.setActivity('with the server. Type -help for info.');
    memberCountChannel.edit(`Members: ${guild.memberCount}`, 8000); //Change name of channel
});
bot.on("guildMemberAdd", function(member){
    memberCountChannel.edit(`Members: ${guild.memberCount}`, 8000);//Change name of channel
});

bot.on("guildMemberRemove", async function(member){
    memberCountChannel.edit(`Members: ${guild.memberCount}`, 8000);//Change name of channel
});
bot.login('TOKEN HERE');

编辑: channel 确实存在，机器人确实有权使用 channel 做任何事情。

Answer 1

本质上问题是，正如您正确推测的那样

const memberCountChannel = bot.channels.get("533334637163053077");

这是因为您正试图在 .on('ready') 事件触发之前不存在的对象( channel )上调用方法(.get)。