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Next.js invalid use server export value

Invalid "use server" Value

Next.js detected a use server file exporting something other than async functions, which is invalid because Server Actions must be declared as async exports.

Invalid use server valueconfiguration

Observed message

Invalid "use server" Value

Why it happens

  • A use server file exports a constant, object, or other non-function value.
  • An exported function in a use server file is missing the async keyword.
  • A wildcard export pulled unsupported values into a use server module.

How to fix it

  1. Ensure every export in the use server file is an async function.
  2. Move configuration objects and helper constants to a separate module.
  3. Check export * statements so unsupported values are not re-exported.

Official reference

Next.js Docs: Invalid use server value

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Next.js Invalid use server value: causes and fixes | Error Atlas