44d1a1cb15
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
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786 B
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13 lines
786 B
Text
---
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title: Invalid Layout or Page Export
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---
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## Why This Error Occurred
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Your [layout](/docs/app/api-reference/file-conventions/layout) or [page](/docs/app/api-reference/file-conventions/page) inside the app directory exports an invalid field. In these files, you're only allowed to export a default React component, or [Segment Configuration Options](/docs/app/api-reference/file-conventions/route-segment-config) for layout and pages, such as `revalidate`, `generateStaticParams`, etc.
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Other custom exports are not allowed to catch misspelt configuration options and prevent conflicts with future options.
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## Possible Ways to Fix It
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You can create a new file and co-locate it with the page or layout. In the new file, you can export any custom fields and import it from anywhere.
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