Next.js dev server crashes when running with Cursor open

Bug Reports
1

:clipboard: Bug Description:
When running pnpm dev on a Next.js project using the App Router and Turbopack, the dev server crashes immediately if Cursor is open. This issue disappears when Cursor is closed and the server is restarted.

So i need each time close cursor, to test my app: I close cursor and then run pnpm dev in terminal and it working, until I open Cursor, it’s crashes immediately without any errors(probably when cursor starting doing tsconfig initializing)

:repeat_button: Steps to Reproduce:

  1. Open a Next.js 14+ project in Cursor (App Router + Turbopack).
  2. In terminal, run pnpm dev (or next dev).
  3. Observe: server starts compiling, then crashes and exits.
  4. Close Cursor, run the same command → works fine.

:laptop: Environment Info:
OS: WSL

Possibly related to Cursor’s internal TypeScript watcher or syncing logic conflicting with Turbopack.