Turbopack Error: Failed to write app endpoint /page

[Nurgazy30]

Turbopack version: c8cf55f4
Next.js version: 15.5.2

Error message:

Turbopack Error: Failed to write app endpoint /page

[DanielSalazarLoaiza]

This usually happens when Turbopack fails to write compiled output to the .next directory — often due to file permission issues, corrupted cache, or parallel write conflicts.
Try removing .next and rebuilding the project.
If the issue persists, ensure your OS or antivirus isn’t blocking file writes, and verify that app/page.tsx or imported assets (like CSS) don’t contain syntax errors or circular imports.