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vercel__next.js/errors/css-modules-npm.mdx
Delba de Oliveira 2e2ee08b60 Docs IA 2.0: Delete routing section, add BFF guide, polish getting started (#80365)
Closes:
https://linear.app/vercel/issue/DOC-4686/clean-up-routing-section
Redirects: https://github.com/vercel/front/pull/47151

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Co-authored-by: Joseph <joseph.chamochumbi@vercel.com>
Co-authored-by: graphite-app[bot] <96075541+graphite-app[bot]@users.noreply.github.com>
2025-06-16 13:42:20 +01:00

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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 Router.