nextjs - 💡(How to fix) Fix Turbopack version: `23c46498` [1 comments, 2 participants]

Error message:

Fix: Ensure the next package is correctly installed and reachable by Turbopack

The error is thrown when Turbopack cannot resolve the next module while building the project.
Typical causes are:

• next missing from package.json / not installed.
• Corrupted node_modules or lock‑file mismatch.
• Turbopack looking at the wrong workspace (monorepo root vs. app folder).

Below is a concise, step‑by‑step remediation that works for both plain projects and monorepos.

1. Add / verify next in package.json

{
  "name": "my-app",
  "private": true,
  "scripts": {
    "dev": "next dev",
    "build": "next build",
    "start": "next start"
  },
  "dependencies": {
    "next": "^14.2.0",          // <-- make sure a valid version is listed
    "react": "^18.3.0",
    "react-dom": "^18.3.0"
  }
}

If you are using a monorepo, add next to the app package’s dependencies, not only to the root.

2. Clean and reinstall