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Next.js invalid layout or page export

Invalid Layout or Page Export

Next.js found a layout or page file exporting a field that is not allowed in the app directory, such as a custom export instead of a supported segment option.

Invalid Layout or Page Exportconfiguration

Observed message

Invalid Layout or Page Export

Why it happens

  • A page or layout file exports a custom value that is not a component or supported segment config.
  • A configuration option was misspelled and exported as a custom field.
  • Shared data or utilities were exported directly from a layout or page file.

How to fix it

  1. Keep only the default component export and supported segment options in layout and page files.
  2. Move custom exports into a colocated helper module.
  3. Review app directory files for misspelled route configuration exports.

Official reference

Next.js Docs: Invalid Layout or Page Export

Related errors

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Next.js Invalid Layout or Page Export: causes and fixes | Error Atlas