ReferenceError: require is not defined in ES module scope, you can use import instead

[jpcarpanezi]

i'm trying to build my index.js in a single contained file. That's working very well with commonjs, but when i try to build with module type, when i run the code it doesn't work.

I run the command:

ncc build index.js -m

This is my test code:

import { createLogger, format as _format, transports as _transports } from 'winston';

const logger = createLogger({
	level: 'info',
	format: _format.json(),
	defaultMeta: { service: 'user-service' },
	transports: [
		//
		// - Write all logs with importance level of `error` or less to `error.log`
		// - Write all logs with importance level of `info` or less to `combined.log`
		//
		new _transports.File({ filename: 'error.log', level: 'error' }),
		new _transports.File({ filename: 'combined.log' }),
	],
});

//
// If we're not in production then log to the `console` with the format:
// `${info.level}: ${info.message} JSON.stringify({ ...rest }) `
//
if (process.env.NODE_ENV !== 'production') {
	logger.add(new _transports.Console({
		format: _format.simple(),
	}));
}

This is my package.json:

{
	"name": "typescript-test-2",
	"version": "1.0.0",
	"type": "module",
	"description": "",
	"main": "index.js",
	"scripts": {
		"test": "echo \"Error: no test specified\" && exit 1"
	},
	"keywords": [],
	"author": "",
	"license": "ISC",
	"dependencies": {
		"@vercel/ncc": "^0.36.1",
		"winston": "^3.10.0"
	}
}

Then, when i run node dist/index.js it throws this error:

file:///C:/Users/user/source/repos/app/scripts/dist/index.js:14506
module.exports = require("util");
^

ReferenceError: require is not defined in ES module scope, you can use import instead
This file is being treated as an ES module because it has a '.js' file extension and 'file:///C:/Users/user/source/repos/app/scripts/dist/package.json' contains "type": "module". To treat it as a CommonJS script, rename it to use the '.cjs' file extension.
    at 3837 (file:///C:/Users/user/source/repos/app/scripts/dist/index.js:14506:1)
    at __nccwpck_require__ (file:///C:/Users/user/source/repos/app/scripts/dist/index.js:14546:42)
    at 5825 (file:///C:/Users/user/source/repos/app/scripts/dist/index.js:41:12)
    at __nccwpck_require__ (file:///C:/Users/user/source/repos/app/scripts/dist/index.js:14546:42)
    at 1251 (file:///C:/Users/user/source/repos/app/scripts/dist/index.js:770:14)
    at __nccwpck_require__ (file:///C:/Users/user/source/repos/app/scripts/dist/index.js:14546:42)
    at 3605 (file:///C:/Users/user/source/repos/app/scripts/dist/index.js:5264:16)
    at __nccwpck_require__ (file:///C:/Users/user/source/repos/app/scripts/dist/index.js:14546:42)
    at 7829 (file:///C:/Users/user/source/repos/app/scripts/dist/index.js:5695:23)
    at __nccwpck_require__ (file:///C:/Users/user/source/repos/app/scripts/dist/index.js:14546:42)

Does anyone has this problem before?

[styfle]

Looks like a duplicate of #791