rsnext/errors/css-modules-npm.mdx
Delba de Oliveira 44d1a1cb15
docs: Migrate error messages to MDX and App Router. (#52038)
This PR is part of a larger effort to migrate error messages to MDX and
use App Router: https://github.com/vercel/front/pull/23459
2023-07-05 06:11:16 -07:00

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---
title: 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](/docs/architecture/nextjs-compiler#module-transpilation).
> **Good to know**: This limitation does not exist when using the [`app` directory](/docs/app/building-your-application).