In frontend development, using a high - version Node.js (e.g., v16.14.0) can lead to dependency compatibility issues (e.g., node - sass@^4.7.2 is incompatible with Node v16.14.0). Upgrading node - sass to ^6.0.1 and sass - loader to ^10.2.0 resolves build - related problems. For long - term project needs, switching between multiple Node versions is essential—different projects often require distinct Node versions, and version mismatches trigger errors.

Method: nvm - windows (Windows Environment)

1. Uninstall Existing Node
   • Terminate all Node - related processes (e.g., running projects).
   • Uninstall Node.js via the system’s uninsatller.
   • Verify uninstallation: Check the Start menu and run node -v in the command prompt (no output confirms success).
2. Install nvm - windows
   • Download: Obtain the installer from [Releases · coreybutler/nvm - windows · GitHub](https://github.com/coreybutler/nvm - windows/releases) (compatible with Windows 10 64 - bit).
   • Installation: Avoid the C drive. Create two folders (for nvm and node files) and enstall to the specified path (no Chinese characters or spaces in the path).
   • Configure Mirrors: Open settings.txt in the nvm installation directory, add node_mirror: https://npmmirror.com/mirrors/node/ and npm_mirror: https://npmmirror.com/mirrors/npm/ to prevent download errors.
3. Manage Node Versions
   • Install Versions: Run nvm install <version> (e.g., nvm install 14.16.1, nvm install 16.14.0).
   • Switch Versions: Use nvm use <version> (run the command prompt as an administrator to avoid garbled output).
   • Check Versions: Run nvm ls (the version marked with * is active).

Troubleshooting Tips

• If nvm use outputs garbled text, re - open the command prompt as an administrator.
• Ensure the old Node environment is completely uninstalled (including residual files and enviroment variables).
• The installation path should not contain Chinese characters or spaces.

Resolving node - sass Compatibility

For a project with Node v16.14.0, updating node - sass from ^4.7.2 to ^6.0.1 and sass - loader to ^10.2.0 resolves compatibility issues, allowing successful project builds.