discord.js.setToken(...) 不是 function

Question

I am new in discord.js v14.0.3 and trying to start a simple command but I got an error. I checked my BOT_TOKEN , BOT_CLIENT_ID , GUILD_ID is valid and I think the problem is not related with those token, how can I fix it?

Error Message

> node register.js

/register.js:11
(async () => {
^

TypeError: (intermediate value).setToken(...) is not a function
    at Object.<anonymous> ....

My code

require("dotenv").config()

const { REST } = require('@discordjs/rest')
const { Routes } = require('discord.js')

const commands = [
  {
    name: 'ping',
    description: 'Replies with Pong!',
  },
];

const rest = new REST({ version: '10' }).setToken(process.env.BOT_TOKEN)

(async () => {
  try {
    console.log('Started refreshing application (/) commands.')

    await rest.put(Routes.applicationGuildCommands(process.env.BOT_CLIENT_ID, process.env.DC_GUILD_ID), { body: commands });

    console.log('Successfully reloaded application (/) commands.')
  } catch (error) {
    console.error(error)
  }
})()

package.json

{
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "node index.js",
    "build": "node register.js"
  },
  "dependencies": {
    "discord.js": "^14.0.3",
    "dotenv": "^16.0.1",
    "ytdl-core": "^4.11.0"
  }
}

Answer 1

Two things:

1. Looks like your package.json is missing @discordjs/rest . Install it with npm install @discordjs/rest or whatever your package manager is. Since you have no error on the require it may be is installed as phantom dependency.
2. You simply missing a semicolon in the line const rest = new REST({ version: '10' }).setToken(process.env.BOT_TOKEN) therfore the whole block with ...setToken...(async () is considered to be one(.) expression.