app dir in turbo mode can not import styles from node_modules

[AnnatarHe]

Link to the code that reproduces this issue

https://github.com/mantinedev/next-app-template/tree/0a09fb7218de3ac866b0e782dfee7b107be1c88a

To Reproduce

pnpm i
npm run dev # open http://localhost:3000, looks good.
npm run dev -- --turbo # open http://localhost:3000, no styles at all.

Current vs. Expected behavior

current:
cannot import styles from node_modules

expected:
should be able to import styles from node_modules.

Verify canary release

• I verified that the issue exists in the latest Next.js canary release

Provide environment information

Operating System:
  Platform: darwin
  Arch: arm64
  Version: Darwin Kernel Version 23.0.0: Fri Sep 15 14:41:43 PDT 2023; root:xnu-10002.1.13~1/RELEASE_ARM64_T6000
Binaries:
  Node: 20.5.0
  npm: 9.8.0
  Yarn: 1.22.19
  pnpm: 8.6.11
Relevant Packages:
  next: 13.5.4-canary.7
  eslint-config-next: N/A
  react: 18.2.0
  react-dom: 18.2.0
  typescript: 5.2.2
Next.js Config:
  output: N/A

Which area(s) are affected? (Select all that apply)

App Router, Turbopack (--turbo)

Additional context

the key should be here: https://github.com/mantinedev/next-app-template/blob/0a09fb7218de3ac866b0e782dfee7b107be1c88a/app/layout.tsx#L1C9-L1C9

[kwonoj]

#56679

[AnnatarHe]

I tried on the 13.5.5 and it has been fixed. thanks.

[github-actions]

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