Next not loading

[polar rampart]

Hi @low lichen. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

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From the issues in the knowledge sources, Turbopack “unexpected error” / “Next.js package not found” problems are usually environment- or tooling-related rather than code-related, and they often persist even after reverting code or reinstalling dependencies.

One concrete workaround that resolved a very similar “Next.js package not found” Turbopack error was:

1. Delete node_modules and your lockfile:

   rm -rf node_modules package-lock.json pnpm-lock.yaml yarn.lock
   

2. Clear the npm cache:

   npm cache clear --force
   

3. Reinstall dependencies with npm (not pnpm/yarn), then run dev again:

   npm install
   npm run dev
   

   In that case, the user suspected pnpm was the cause, and switching to npm fixed the Turbopack error and allowed Next.js to load again. [Turbopack package error]

If this doesn’t help and the dev server still fails with a “FATAL: An unexpected Turbopack error occurred” message, the Next.js team recommends creating a minimal reproduction (strip unrelated pages, dependencies, env vars, monorepo complexity) and opening a GitHub issue with the panic log file mentioned in the error. [Turbopack panic; Unexpected Turbopack]

Because the knowledge sources don’t include more specific debugging steps for your exact symptom beyond these, I can’t say with certainty what the root cause is in your project. If you can share:

• Your package manager (npm/yarn/pnpm)
• Next.js version
• The exact Turbopack error text from the terminal

I can try to map it more closely to one of the documented issues.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

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