1) Confirm Node version
- Check the version required by the project.
- Switch via nvm/volta/asdf.
2) Reinstall dependencies
- Remove
node_modules. - Reinstall with npm/yarn/pnpm.
3) Clear cache
- Clear the package manager cache (npm/yarn/pnpm).
4) Network/proxy
- On corporate networks, configure proxy/registry.
- Try another network.
5) If it’s a Node download issue
- Check status.nodejs.org.