nextjs - 💡(How to fix) Fix turbopack internal error, failed to write page endpoint /_app [6 comments, 4 participants]

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vercel/next.js#84023Fetched 2026-04-08 02:20:52
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Error Message

  1. error is there , site wont work QUICK FIX: removing turbopack from dev script fixes error

Code Example

OS: windows
git bash
turborepo example with tailwind
RAW_BUFFERClick to expand / collapse

Link to the code that reproduces this issue

https://github.com/vercel/turborepo/tree/main/examples/with-tailwind

To Reproduce

  1. npx create-turbo@latest -e with-tailwind
  2. pnpm run dev
  3. visit localhost:3000
  4. error is there , site wont work

QUICK FIX: removing turbopack from dev script fixes error

Current vs. Expected behavior

<img width="1920" height="1080" alt="Image" src="https://github.com/user-attachments/assets/ced8d310-9b1f-4606-8422-a467c9a8bb95" />

Provide environment information

OS: windows
git bash
turborepo example with tailwind

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

Not sure, Turbopack

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

next dev (local)

Additional context

No response

extent analysis

TL;DR

Removing Turbopack from the dev script is a likely workaround to fix the error.

Guidance

  • The issue seems to be related to Turbopack, as removing it from the dev script resolves the error.
  • Verify that the error is indeed caused by Turbopack by trying the QUICK FIX provided.
  • Check the dev script in the package.json file to see how Turbopack is being used and try to identify any potential configuration issues.
  • If removing Turbopack is not a viable long-term solution, consider investigating alternative configurations or versions of Turbopack that may resolve the issue.

Example

No code snippet is provided as the issue does not contain enough information to create a specific example.

Notes

The provided information is limited, and the root cause of the issue is not entirely clear. Further investigation into the Turbopack configuration and the dev script may be necessary to find a permanent solution.

Recommendation

Apply workaround: Remove Turbopack from the dev script, as it has been reported to fix the error. This is a temporary solution until the root cause can be identified and addressed.

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nextjs - 💡(How to fix) Fix turbopack internal error, failed to write page endpoint /_app [6 comments, 4 participants]