Common Causes

1. Node.js is not installed properly – Installation may be incomplete or corrupted.

2. Environment variables are not set correctly – The system might not be locating Node.js.

3. npm is outdated or missing – The npm installation could be corrupted.

4. Multiple versions of Node.js causing conflicts – Older versions might be interfering.

5. Command Prompt/Terminal needs a restart – The session may not be updated with the correct path.

Troubleshooting Steps

1. Verify Node.js Installation

Run the following command to check if Node.js is installed:

node -v

If this returns an error, reinstall Node.js from nodejs.org.

2. Check npm Version

Ensure npm is installed correctly by running:

npm -v

If npm is missing, reinstall Node.js or install npm separately using:

npm install -g npm

3. Check and Update Environment Variables (Windows)

Open System Properties → Advanced → Environment Variables.

Locate Path under System variables.

Ensure it contains the correct Node.js path (e.g., C:\Program Files\nodejs).

If missing, add it manually and restart the terminal.

4. Use nvm (Node Version Manager)

If you have multiple Node.js versions, use nvm to manage them:

nvm use stable

5. Restart the Terminal or System

After making changes, restart your terminal or system for the settings to take effect.

If this not works you can check: https://www.codercrafter.in/blogs/nodejs/npm-not-recognizing-node-despite-path-being-correct