1. Please try running this command again as root/Administrator is displayed.

Solution: Run CMD as the administrator

  1. Vue-cli cannot be uninstalled. Solution: Uninstall Node completely, reinstall Node, and install VUE-CLI.

Possible cause: The node is not completely uninstalled.

  1. Insufficient permission to use NPM install in vscode. The default path is C:\Program Files. You need administrator permission to perform this operation