next 14.2.4 type:module give error

[tianyingchun]

Generated 13 documents in .contentlayer ✓ Ready in 3.7s ○ Compiling / ... ✓ Compiled / in 4.9s (1255 modules) GET / 200 in 5301ms ✓ Compiled in 340ms (580 modules)

[webpack.cache.PackFileCacheStrategy/webpack.FileSystemInfo] Parsing of /Users/tianyingchun/Documents/hyperse-internal/hyperse-blog/node_modules/@contentlayer2/core/dist/generation/generate-dotpkg.js for build dependencies failed at 'import(URL.pathToFileURL(filePathJoin(generatedPkgPath, 'generated', 'index.mjs')).href)'. Build dependencies behind this expression are ignored and might cause incorrect cache invalidation.

[tianyingchun]

"contentlayer2": "0.4.6", "next-contentlayer2": "0.4.6",

[timlrx]

Sorry, could you elaborate on what causes the error and provide a small reproducible is possible?

[tianyingchun]

okay, i will find time to make a small reproduce repo

[yangchristina]

Am also getting this, npm run dev works fine, but no posts show up on build

Edit: oops, posts do show up, I set draft to true by accident. Despite this error, everything still appears to be running fine.

[timlrx]

Could you include more information on the version of Next and React that you are using as well. I just tested on Next 15 canary and React 19 without issue - https://stackblitz.com/edit/github-ekmxur-ba82kk?file=package.json

[tianyingchun]

see here https://github.com/tianyingchun/tailwind-nextjs-starter-blog-issue

1. yarn install
2. yarn dev
3. see below

[tianyingchun]

also see latest commit https://github.com/tianyingchun/tailwind-nextjs-starter-blog-issue/commit/4e8b693192f19c539ca465073052e15e7c426b08

[timlrx]

Ah this is the same issue as https://github.com/contentlayerdev/contentlayer/issues/313. It's a Webpack warning that can be ignored: https://github.com/webpack/webpack/pull/15688. Or if you don't use "type": "module", you can avoid this error as well.

[tianyingchun]

yes, i know, but don't know why, i just switch to turbo & webpack in memory cache.

[ham-evans]

I'm getting this too with "contentlayer2": "^0.5.0". Definitely triggered by "type": "module" in package.json but would be awesome if there was a way to remove it.

is proposed solution adding this to next.config under the webpack? (see here)

config.infrastructureLogging = {
      level: "error",
    };