chalk - Error [ERR_REQUIRE_ESM]: require() of ES Module

Question

Hi tried to install chalk on my very simple app and then i got error:

Error [ERR_REQUIRE_ESM]: require() of ES Module my-file-is-here  and chalk\node_modules\chalk\source\index.js from my-file-is-here not supported.
Instead change the require of index.js in my-file-is-here to a dynamic import() which is available in all CommonJS modules.
    at Object.<anonymous> (`my-file-is-here`) {
  code: 'ERR_REQUIRE_ESM'
}

thats my code:

const os = require("os")
const chalk = require("chalk")

console.log("app running")

Answer 1

You can use dynamic import with chalk^5 ESM in CJS

async function chalk() {
  return (await import("chalk")).default;
}

async function main(){
  console.log((await chalk()).gray(">", ...commands));
}

Answer 2

Think it's ES module and works in import way, but you can do something like this:

const { chalk } = require("chalk");

It worked for me when I worked with firebase in v8 style.

Answer 3

//First Change in you Package.json

"main": "app.js",
"type": "module",//use this line 

//Second change in App.js

import os from 'os' //  const os = require("os")

import chalk from 'chalk';//const chalk = require("chalk")

Answer 4

Chalk 5 has changed to ESM. They provide a link to better understand what that means: Pure ESM .

From chalk README:

IMPORTANT: Chalk 5 is ESM. If you want to use Chalk with TypeScript or a build tool, you will probably want to use Chalk 4 for now.

As of this reply, the last version of chalk 4 is 4.1.2 .

Answer 5

That is something to do with the version you are using which is I think 5.0.0

1. npm uninstall chalk

then

2. npm i chalk@2.4.1

now you can run your code

const chalk = require('chalk');
console.log(chalk.blue('Hello world!')); 

Answer 6

You can try use the alternative ansis .

This library support both ESM and CommonJS syntax.

Install

npm install ansis

Usage

const ansis = require('ansis');
console.log(ansis.black.bgGreen('Hello World!')); 

Answer 7

Add "type": "module" to your package.json. Replace "main": "index.js" with "exports": "./index.js" in your package.json. Update the "engines" field in package.json to Node.js 12: "node": "^12.20.0 || ^14.13.1 || >=16.0.0". Remove 'use strict'; from all JavaScript files. Replace all require()/module.export with import/export. Use only full relative file paths for imports: import x from '.'; → import x from './index.js';. If you have a TypeScript type definition (for example, index.d.ts), update it to use ESM imports/exports. Optional but recommended, use the node: protocol for imports.

Answer 8

Step-1 npm uninstall chalk (delete all chalk files)

---

Step-2 npm install chalk@4.1.0

const chalk = require("chalk");
console.log(chalkl.green("Hello"));

---

Done

Answer 9

I simply used import chalk from "chalk" and added "type":"module" in the package.json file which enabled es6 module worked for me quite well.

Answer 10

in any such case, use import chalk from 'chalk'; // but before using that first you need to do some minor changes // in the package.json file, change the type to module, for eg "type": "module"

Answer 11

Just use version 4 not 5. Latest version has been moved to esm