next build fails with The "path" argument must be of type string with WebWorker within workspaces

[andreypopp]

Run next info (available from version 12.0.8 and up)

Operating System:
  Platform: linux
  Arch: x64
  Version: #1 SMP Debian 5.15.5-2~bpo11+1 (2022-01-02)
Binaries:
  Node: 16.13.2
  npm: 8.1.2
  Yarn: 1.22.17
  pnpm: 6.30.0
Relevant packages:
  next: 12.0.10
  react: 17.0.2
  react-dom: 17.0.2

What version of Next.js are you using?

12.0.10

What version of Node.js are you using?

16.13.2

What browser are you using?

Chrome, Safari, ...

What operating system are you using?

Linux

How are you deploying your application?

next build

Describe the Bug

With the setup described at https://github.com/andreypopp/next-repro-25484 next build command fails with:

webpack/runtime/compat
The "path" argument must be of type string. Received undefined

Expected Behavior

next build is expected to build this correctly

To Reproduce

This is using pnpm and workspaces. Note that I was able to reproduce this with yarn workspaces as well but in some configurations. Here I can reliably reproduce it with pnpm.

git clone git@github.com:andreypopp/next-repro-25484.git
cd ./next-repro-25484
pnpm install
(cd with-web-worker/ && pnpm run build)

[balazsorban44]

Just curious, is this actually related to workspaces or have you been able to reproduce in a single application as well? We should try to keep the reproduction minimal if that's the case.

[andreypopp]

@balazsorban44 this is the minimal repro I've been able to come up with, sorry.

I think this is related to workspaces, yeah (both with yarn and pnpm, though with yarn it doesn't manifest itself in this repro)

[balazsorban44]

We identified the issue and this is being addressed, thanks!

[github-actions]

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