spawn next syscall fails with ENOENT when trying to run local next.js version

[MonstraG]

Summary

Hi! I'm trying to follow contributing/core/developing.md and contributing/core/developing-using-local-app.md.

I have successfully run pnpm dev which spawned 9 tasks, with 2 succeeding, rest waiting.

I've copy-pasted basic-css example into root, removed package.json to match "Develop inside the monorepo" setup from developing-using-local-app.md, but when I run pnpm next ./dev-app, it fails with an error (see below)

I've seen some other discussions where people were failing to work on next.js, but none of them had the same error as I do.

What do I do?

Additional information

Error:


➜  next.js git:(MY_BRANCH_NAME) ✗ pnpm next ./dev-app     

> nextjs-project@0.0.0 next /home/arsga/Downloads/next.js
> cross-env NEXT_PRIVATE_LOCAL_DEV=1 NEXT_TELEMETRY_DISABLED=1 NODE_OPTIONS="--trace-deprecation --enable-source-maps" next "./dev-app"

node:events:485
      throw er; // Unhandled 'error' event
      ^

Error: spawn next ENOENT
    at ChildProcess._handle.onexit (node:internal/child_process:286:19)
    at onErrorNT (node:internal/child_process:484:16)
    at process.processTicksAndRejections (node:internal/process/task_queues:90:21)
Emitted 'error' event on ChildProcess instance at:
    at ChildProcess._handle.onexit (node:internal/child_process:292:12)
    at onErrorNT (node:internal/child_process:484:16)
    at process.processTicksAndRejections (node:internal/process/task_queues:90:21) {
  errno: -2,
  code: 'ENOENT',
  syscall: 'spawn next',
  path: 'next',
  spawnargs: [ './dev-app' ]
}

Node.js v23.9.0

### Example

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