Can't resolve node builtin modules in esm build dependency

[keenwon]

Bug report

What is the current behavior?

<w> [webpack.cache.PackFileCacheStrategy] Caching failed for pack: Error: Can't resolve 'url' in '/Users/keenwon/Test/webpack-test'
<w> while resolving 'url' in /Users/keenwon/Test/webpack-test as file
<w>  at resolve esm file url
<w>  at file dependencies /Users/keenwon/Test/webpack-test/webpack.config.mjs
<w>  at file /Users/keenwon/Test/webpack-test/webpack.config.mjs
<w>  at resolve commonjs /Users/keenwon/Test/webpack-test/webpack.config.mjs

If the current behavior is a bug, please provide the steps to reproduce.

works fine, no warnings

What is the expected behavior?

Other relevant information:
webpack version: 5.70.0
Node.js version: v14.19.0
Operating System: macOS 12.3
Additional tools:

demo

repo https://github.com/keenwon/webpack-test, switch to node-prefix branch

node: doesn't work either

[alexander-akait]

Duplicate #14166

[alexander-akait]

Please use #14166 (comment)

[keenwon]

@alexander-akait @vankop
not work, I use node:url or url in webpack.config.mjs

In other mjs files, it works

// test.mjs
import path from 'node:path'
console.log(path.dirname('/foo/bar/baz/asdf/quux'))

[vankop]

your config should be

externals: { 'node:X': 'commonjs2 X' }

where X is used module (url, path etc)

[keenwon]

I have committed to the node-prefix branch(repo)

[vankop]

ok, I understand what you are doing.. please use url and path modules in webpack.config.. (without node: prefix)

settings with externals works only for bundling code, not webpack config..

[keenwon]

Yes, that's the weird part. the url also not works

(Please see the first picture of this issue)

[vankop]

I found a problem.. For now I can suggest to use commonjs config format..

[webpack-bot]

This issue had no activity for at least three months.

It's subject to automatic issue closing if there is no activity in the next 15 days.

[vankop]

solved in #15611