Discord.js报错：TypeError: Cannot read properties of undefined (reading 'FLAGS')求助

问题场景 #

开发Discord机器人时，启动后触发报错，无法正常上线：

机器人代码 #

const Discord = require("discord.js")
const { Client, Intents } = require('discord.js');

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

client.on("ready", () => {
  console.log('Logged in as ${client.user.tag}!')
  console.log("Bot is online!")
})

client.on("message", msg => {
  if (msg.content === "ping") {
    msg.reply("no1se");
  }
})

client.login("my token")

报错信息 #

TypeError: Cannot read properties of undefined (reading 'FLAGS')
    at Object.<anonymous> (/home/runner/no1seAlerts-1/index.js:4:47)
    at Module._compile (node:internal/modules/cjs/loader:1101:14)
Hint: hit control+c anytime to enter REPL.
(node:2004) ExperimentalWarning: stream/web is an experimental feature. This feature could change at any time
(Use `node --trace-warnings ...` to show where the warning was created)

解决方案 #

报错原因是你使用的Discord.js版本为v14+，该版本对Intents调用方式和事件名称做了变更，修复步骤如下：

1. 替换Intents调用方式：v14+移除了Intents.FLAGS，改用IntentsBitField.Flags声明网关意图
2. 更新消息事件：原message事件已更名为messageCreate，不修改会导致无法接收消息
3. 修复模板字符串：原代码中console.log用单引号包裹模板字符串，需改为反引号才能正确解析变量

修改后的完整代码：

const { Client, IntentsBitField } = require('discord.js');

const client = new Client({ 
  intents: [
    IntentsBitField.Flags.Guilds,
    IntentsBitField.Flags.GuildMessages
  ] 
});

client.on("ready", () => {
  console.log(`Logged in as ${client.user.tag}!`)
  console.log("Bot is online!")
})

client.on("messageCreate", msg => {
  if (msg.content === "ping") {
    msg.reply("no1se");
  }
})

client.login("your-token-here")

额外说明 #

• 若坚持使用Discord.js v13版本，Intents.FLAGS是可用的，但v13已停止维护，建议升级到最新稳定版
• 确保机器人在Discord开发者平台已开启对应的网关权限（Guilds、Guild Messages）

内容的提问来源于stack exchange，提问作者NO1SE