Turbopack Error: Failed to write app endpoint /page

[amaken-hd]

Turbopack version: 0c06f068
Next.js version: 0.0.0

Error message:

Turbopack Error: Failed to write app endpoint /page

[NikanEidi]

Hi @amaken-hd,

This error typically occurs when Turbopack encounters a file system lock or a corrupted build cache. Since your Next.js version is appearing as 0.0.0, it likely indicates a version mismatch or a corrupted .next directory.

Please try the following steps to resolve this:

1. Clear the Build Cache

The most common fix for "Failed to write app endpoint" is manually clearing the cached build artifacts. Run this in your terminal:

rm -rf .next

Then, try starting your dev server again:

npm run dev -- --turbo

2. Check for Duplicate Routes

Turbopack can fail to write an endpoint if there is a conflict between the app/ and pages/ directories. Ensure you don't have overlapping routes like:

• app/page.tsx
• pages/index.tsx (or similar duplicates)

3. Verify File Permissions

Ensure the process has write permissions to the project folder. Sometimes an IDE indexer or another background process might be locking the .next folder.

4. Update to a Stable Version

Since your version is listed as 0.0.0, I recommend updating to the latest stable version to ensure compatibility:

npm install next@latest react@latest react-dom@latest

If these steps don't work, could you share your OS and whether you are running this inside a Docker container?