Turbopack Error: Next.js package not found

[Dhavalkurkutiya]

Turbopack version: 91e5b6b8
Next.js version: 0.0.0

Error message:

Next.js package not found

Debug info:
- Execution of get_entrypoints_with_issues_operation failed
- Execution of EntrypointsOperation::new failed
- Execution of Project::entrypoints failed
- Execution of AppProject::routes failed
- Execution of directory_tree_to_entrypoints_internal failed
- Execution of directory_tree_to_loader_tree failed
- Execution of get_next_package failed
- Next.js package not found

[victormoni]

Hi @Dhavalkurkutiya

This error means that Turbopack couldn’t locate the Next.js package in your project.
In the report, it shows:

Next.js version: 0.0.0 → This usually means it’s not installed or not properly resolved.

Error: Next.js package not found → Turbopack is trying to load Next.js but can’t find it in node_modules or the project dependencies.

How to fix it:

1. Check if Next.js is installed

npm list next

or

yarn list next

If it’s missing, install it:

npm install next react react-dom

or

yarn add next react react-dom

2. Make sure package.json has the correct dependency

"dependencies": {
  "next": "14.x.x", // or your desired version
  "react": "18.x.x",
  "react-dom": "18.x.x"
}

3. Delete and reinstall dependencies

rm -rf node_modules package-lock.json # or yarn.lock
npm install

(For Yarn: yarn install)

4. Run with Turbopack again

next dev --turbo

5. If still failing, ensure you’re running the command from the project root where package.json is located.

This usually happens when:

• You cloned a repo but didn’t install dependencies.

• The node_modules folder got corrupted.

• You’re running Turbopack from the wrong directory.

• The Next.js version is missing or incompatible.

[icyJoseph]

Not necessarily. This happens most often because multiple lock files are found.

@Dhavalkurkutiya you should refer to: #78192 (comment)

Also, the latest Next.js canary versions show how many lock files are found, and which one will be used.

[Dhavalkurkutiya]

Hi @Dhavalkurkutiya

This error means that Turbopack couldn’t locate the Next.js package in your project. In the report, it shows:

Next.js version: 0.0.0 → This usually means it’s not installed or not properly resolved.

Error: Next.js package not found → Turbopack is trying to load Next.js but can’t find it in node_modules or the project dependencies.

How to fix it:

1. Check if Next.js is installed

npm list next

or

yarn list next

If it’s missing, install it:

npm install next react react-dom

or

yarn add next react react-dom

2. Make sure package.json has the correct dependency

"dependencies": {
  "next": "14.x.x", // or your desired version
  "react": "18.x.x",
  "react-dom": "18.x.x"
}

3. Delete and reinstall dependencies

rm -rf node_modules package-lock.json # or yarn.lock
npm install

(For Yarn: yarn install)

4. Run with Turbopack again

next dev --turbo

5. If still failing, ensure you’re running the command from the project root where package.json is located.

This usually happens when:

• You cloned a repo but didn’t install dependencies.
• The node_modules folder got corrupted.
• You’re running Turbopack from the wrong directory.
• The Next.js version is missing or incompatible.

[Dhavalkurkutiya]

Thanks @victormoni and @icyJoseph for the clarification.
I’ll first check if there are multiple lock files (as suggested in #78192) and ensure only the correct one remains. I’ll also verify that next, react, and react-dom are properly installed in my dependencies, and reinstall them if needed. Will report back with results.