Failed to find Server Action

[kyrylolvov]

[Error: Failed to find Server Action ${id}. This request might be from an older or newer deployment. Original error: Cannot read properties of undefined (reading 'workers')]

[Umuts-Codes]

Hi kyrylolvov,

This error occurs when Next.js cannot locate the Server Action referenced by the client. It typically happens due to one of the following reasons:

1. Deployment mismatch

• The request might originate from an older or newer deployment where the Server Action ID does not match the current version.
• Ensure your client and server are using the same deployment and clear any cached pages or service workers.

2. Server Action not exported or misconfigured

• Verify that the Server Action is properly exported in your App Router file.
• Example:
  export async function myServerAction(data) { ... }

3. Hot reload or dev cache issues

• In development, sometimes Server Actions get out of sync due to Fast Refresh or build caching.
• Restart your dev server and rebuild the app:

  rm -rf .next
  npm run dev
  

4. Check server logs

• Look for any errors related to worker initialization or undefined objects in the server console.

• Summary -

The main cause is usually a mismatch between client requests and the current server deployment. Confirm deployments, verify exports, and restart the dev server to resolve the issue.