Discord Bot Intents相关错误排查与解决求助

问题概述 #

开发Discord Bot时先后遇到两个错误：

• 初始报错：TypeError: Cannot read properties of undefined (reading 'FLAGS')
• 添加错误代码后报错：ReferenceError: intents is not defined

初始报错日志 #

TypeError: Cannot read properties of undefined (reading 'FLAGS')
    at Object.<anonymous> (C:\Users\aviai\OneDrive\Desktop\DiscordBot\index.js:13:23)
    at Module._compile (node:internal/modules/cjs/loader:1254:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1308:10)
    at Module.load (node:internal/modules/cjs/loader:1117:32)
    at Module._load (node:internal/modules/cjs/loader:958:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
    at node:internal/main/run_main_module:23:47

添加错误代码后的报错日志 #

ReferenceError: intents is not defined
    at Object.<anonymous> (C:\Users\aviai\OneDrive\Desktop\DiscordBot\index.js:10:1)
    at Module._compile (node:internal/modules/cjs/loader:1254:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1308:10)
    at Module.load (node:internal/modules/cjs/loader:1117:32)
    at Module._load (node:internal/modules/cjs/loader:958:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
    at node:internal/main/run_main_module:23:47

原始代码 #

require("dotenv").config();


const {REST} = require("@discordjs/rest");
const { Routes } = require("discord-api-types/v9");
const { Client, Intents, Collection } = require("discord.js");
const { Player } = require("discord-player");
const fs = require("node:fs");
const path = require("node:path");
intents.FLAGS.flagname;

const client = new Client({
    intents: [Intents.FLAGS.GUILDS, 
        Intents.FLAGS.GUILD_MESSAGES, 
        Intents.FLAGS.GUILD_VOICE_STATES]
});

// Load all the commands
const commands = [];
client.commands = new Collection();

const commandsPath = path.joint(_dirname, "commands");
const commandFiles = fs.readdirSync(commandsPath).filter(file => file.endsWith(".js"));

for (const file of commandFiles)
{
    const filePath = path.join(commandsPath, file);
    const command  = require(filePath);

    client.commands.set(command.data.name, command);
    command.push(command.data.ToJSON);
}

client.player = new Player(client, {
    ytdlOptions: {
        quality: "highestaudio",
        highWaterMark: 1 << 25
    }
});

client.on("ready", () => {
const guild_ids = client.guilds.cache.map(guild => guild.id);

const rest = new REST({version: "9"}).setToken(process.env.TOKEN);
for(const guildId of guild_ids)
{
    rest.put(Routes.applicationGuildCommands(process.env.CLIENT_ID, guildId), {
        body: commands
    })
    .then(() => console.log(`Added commands to ${guildId}`))
    .catch(console.error);
}

});

client.on("interactionCreate", async interaction => {
    if(!interaction.isCommand()) return;

    const command = client.commands.get(interaction.commandName);
    if(!command) return;

    try
    {
        await command.execute({client, interaction});
    }
    catch(err)
    {
        console.error(err);
        await interaction.reply("An error occured while executing that command.");
    }
});

client.login(process.env.TOKEN);

错误原因及修复方案 #

1. 解决ReferenceError: intents is not defined #

你代码中添加的intents.FLAGS.flagname;完全是多余且错误的：

• 从discord.js导入的是大写的Intents，小写的intents从未定义过
• 直接删除这一行即可消除该报错

2. 解决初始的TypeError: Cannot read properties of undefined (reading 'FLAGS') #

初始报错并非Intents.FLAGS本身的问题，而是代码中的拼写错误导致连锁反应：

• 错误1：path.joint(_dirname, "commands") → 改为path.join(__dirname, "commands")
  • path模块的正确方法是join，不是joint
  • 当前目录变量是__dirname（两个下划线），不是_dirname
• 错误2：command.push(command.data.ToJSON) → 改为commands.push(command.data.toJSON())
  • 要往定义好的commands数组中添加数据，不是单个command对象
  • toJSON()是小写的方法，需要加括号调用

修复后的完整代码 #

require("dotenv").config();

const { REST } = require("@discordjs/rest");
const { Routes } = require("discord-api-types/v9");
const { Client, Intents, Collection } = require("discord.js");
const { Player } = require("discord-player");
const fs = require("node:fs");
const path = require("node:path");

const client = new Client({
    intents: [
        Intents.FLAGS.GUILDS,
        Intents.FLAGS.GUILD_MESSAGES,
        Intents.FLAGS.GUILD_VOICE_STATES
    ]
});

// Load all the commands
const commands = [];
client.commands = new Collection();

const commandsPath = path.join(__dirname, "commands");
const commandFiles = fs.readdirSync(commandsPath).filter(file => file.endsWith(".js"));

for (const file of commandFiles) {
    const filePath = path.join(commandsPath, file);
    const command = require(filePath);

    client.commands.set(command.data.name, command);
    commands.push(command.data.toJSON());
}

client.player = new Player(client, {
    ytdlOptions: {
        quality: "highestaudio",
        highWaterMark: 1 << 25
    }
});

client.on("ready", () => {
    const guild_ids = client.guilds.cache.map(guild => guild.id);

    const rest = new REST({ version: "9" }).setToken(process.env.TOKEN);
    for (const guildId of guild_ids) {
        rest.put(Routes.applicationGuildCommands(process.env.CLIENT_ID, guildId), {
            body: commands
        })
        .then(() => console.log(`Added commands to ${guildId}`))
        .catch(console.error);
    }
});

client.on("interactionCreate", async interaction => {
    if (!interaction.isCommand()) return;

    const command = client.commands.get(interaction.commandName);
    if (!command) return;

    try {
        await command.execute({ client, interaction });
    } catch (err) {
        console.error(err);
        await interaction.reply("An error occured while executing that command.");
    }
});

client.login(process.env.TOKEN);

内容的提问来源于stack exchange，提问作者Kanashi