Turbopack Error: Failed to write app endpoint /page

[iamchandanchaudhary]

Turbopack version: d1bd5b58
Next.js version: 0.0.0

Error message:

Failed to write app endpoint /page

Caused by:
- Next.js package not found

Debug info:
- Execution of Project::hmr_version_state failed
- Execution of Project::hmr_version failed
- Execution of VersionedContentMap::get failed
- Execution of VersionedContentMap::get_asset failed
- Execution of VersionedContentMap::compute_entry failed
- Execution of *emit_assets failed
- Execution of all_assets_from_entries_operation failed
- Execution of *all_assets_from_entries failed
- Execution of endpoint_output_assets_operation failed
- Execution of <AppEndpoint as Endpoint>::output failed
- Failed to write app endpoint /page
- Execution of AppEndpoint::output failed
- Execution of AppEndpoint::app_page_entry failed
- Execution of *get_app_page_entry failed
- Execution of AppProject::rsc_module_context failed
- Execution of *ModuleAssetContext::new failed
- Execution of *AppProject::get_rsc_transitions failed
- Execution of AppProject::ecmascript_client_reference_transition failed
- Execution of *NextEcmascriptClientReferenceTransition::new failed
- Execution of AppProject::ssr_transition failed
- Execution of *FullContextTransition::new failed
- Execution of AppProject::ssr_module_context failed
- Execution of AppProject::shared_transition failed
- Execution of *FullContextTransition::new failed
- Execution of AppProject::shared_module_context failed
- Execution of *ModuleAssetContext::new failed
- Execution of get_server_resolve_options_context failed
- Execution of get_next_server_import_map failed
- Next.js package not found

[iamchandanchaudhary]

Problem Occurring

[Daksh-create349]

Root cause:
This error occurs because Next.js is not installed or is not being resolved correctly in the project. This is confirmed by:
Next.js version: 0.0.0
Next.js package not found
Turbopack depends on the locally installed next package. If it is missing, corrupted, or not present in node_modules, the app endpoint build will fail.

Fix steps
1. Ensure Next.js is installed
npm install next react react-dom

or

pnpm add next react react-dom

or

yarn add next react react-dom
2. Verify package.json
Make sure your dependencies include:
{
"dependencies": {
"next": "^14.x",
"react": "^18.x",
"react-dom": "^18.x"
}
}
3. Clear install artifacts
rm -rf node_modules .next package-lock.json
npm install

4.Restart the development server
npm run dev

If you are using the App Router

Confirm that:
• An app/ directory exists
• A valid app/page.tsx or app/page.jsx file is present
• The project is not mixing pages/ and app/ incorrectly

⸻

Why this happens
• Next.js version: 0.0.0 indicates the framework was not resolved
• Turbopack cannot initialize SSR/RSC pipelines without the next package
• This often happens when configuration files are copied but dependencies are not installed

⸻

Expected result after fixing
• A valid Next.js version is detected
• The Failed to write app endpoint /page error is resolved
• The development server starts normally

⸻

If the issue still persists, verify that the project was initialized using create-next-app or that the setup matches the expected Next.js project structure.

[iamchandanchaudhary]

This problem was occured because i've changed the root directory name but after the deleting the node_modules & .next folder, & then reinstalling the next.js The problem was fixed. 👍

[Daksh-create349]

Happy to Know ! So can You mark my Comment as Answered ?

[wbinnssmith]

This discussion appears to be a duplicate of #87816.

Please follow the discussion there: #87816

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