nextjs - 💡(How to fix) Fix [TurbopackInternalError] Build fails on Windows with Prisma symlink error (os error 1314) [3 comments, 4 participants]

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vercel/next.js#87692Fetched 2026-04-08 02:06:32
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Error Message

Build error: Caused by: A required privilege is not held by the client (os error 1314)

Root Cause

Build error: create symlink to ../../../node_modules/@prisma/client Caused by: A required privilege is not held by the client (os error 1314)

Code Example

OS: Windows 11 Pro (x64)
Node.js: v22.x
Next.js: 16.1.0
React: 19.x
Package Manager: npm
Bundler: Turbopack
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Link to the code that reproduces this issue

https://github.com/Shubhamkahar196/muzi

To Reproduce

  1. Use Windows 11
  2. Create a Next.js app
  3. Enable Turbopack
  4. Install Prisma (@prisma/client)
  5. Run npm run dev or npm run build

Current vs. Expected behavior

The application should start and build successfully without crashing.

Turbopack crashes and writes a panic log.

Build error: create symlink to ../../../node_modules/@prisma/client Caused by: A required privilege is not held by the client (os error 1314)

Provide environment information

OS: Windows 11 Pro (x64)
Node.js: v22.x
Next.js: 16.1.0
React: 19.x
Package Manager: npm
Bundler: Turbopack

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

Turbopack, Runtime

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

next dev (local), next build (local)

Additional context

  • Running terminal as Administrator sometimes avoids the issue
  • Disabling Turbopack resolves the problem
  • Panic logs are written to AppData\Local\Temp\next-panic-*.log
  • This appears related to Windows symlink permission handling

extent analysis

TL;DR

  • Running the terminal as Administrator or disabling Turbopack may temporarily resolve the issue related to symlink permission handling on Windows.

Guidance

  • Investigate Windows symlink permission settings to understand why running the terminal as Administrator sometimes avoids the issue.
  • Verify if the problem persists when using a different package manager or Node.js version to isolate the root cause.
  • Consider configuring Turbopack to handle symlinks differently or adjusting Windows permissions to accommodate the required privileges.
  • Review the panic logs in AppData\Local\Temp\next-panic-*.log for more detailed error information.

Example

  • No specific code changes are suggested without further investigation, but checking the @prisma/client installation and symlink creation process may provide insights.

Notes

  • The issue seems to be related to Windows-specific symlink permission handling, which may not be directly related to the versions of Next.js, React, or Node.js used.
  • Disabling Turbopack resolves the problem, indicating the issue is likely related to how Turbopack handles symlinks on Windows.

Recommendation

  • Apply workaround: Run the terminal as Administrator when using Turbopack to ensure the required privileges are held by the client, as this seems to temporarily resolve the issue.

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