Uninstall Angular CLI to remove version mismatch error.

Check Angular version "ng v"

Then run "npm cache verify" or "npm cache verify --force"

Uninstall Angular Current version : "npm uninstall -g angular-cli"

Install New latest version "npm install -g @angular/cli@latest" // latest can be version number like 9.0.3

If Laragon issue : Delete the node js folder in laragon - D:\laragon\bin\node-js