rsnext/errors/css-modules-npm.md
Tim Neutkens 08bb2698f5
Update error doc for CSS Modules in third-party deps (#46121)
Fixes NEXT-355



## Bug

- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Errors have a helpful link attached, see [`contributing.md`](https://github.com/vercel/next.js/blob/canary/contributing.md)

## Feature

- [ ] Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
- [ ] Related issues linked using `fixes #number`
- [ ] [e2e](https://github.com/vercel/next.js/blob/canary/contributing/core/testing.md#writing-tests-for-nextjs) tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
- [ ] Errors have a helpful link attached, see [`contributing.md`](https://github.com/vercel/next.js/blob/canary/contributing.md)

## Documentation / Examples

- [ ] Make sure the linting passes by running `pnpm build && pnpm lint`
- [ ] The "examples guidelines" are followed from [our contributing doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)
2023-02-19 13:39:13 +00:00

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# CSS Modules Imported by a Dependency
#### Why This Error Occurred
One of your dependencies (`node_modules`) imports a CSS Modules file.
This normally happens when a package's source files are accidentally consumed,
instead of the built package.
#### Possible Ways to Fix It
Reach out to the maintainer and ask for them to publish a compiled version of
their dependency.
Compiled dependencies do not have references to CSS Module files, or any other
files that require bundler-specific integrations.
The dependency should also provide instructions about what CSS needs to be
imported by you, in your application.
---
If this is **first party code**, try
[including monorepo packages in the compilation pipeline](https://nextjs.org/docs/advanced-features/compiler#module-transpilation).
---
This limitation does not exist when using the `app` directory: [beta.nextjs.org/docs](https://beta.nextjs.org/docs).