npm uninstall -g angular-cli npm cache verify npm install -g @angular/[email protected]
on Linux :
sudo npm install -g @angular/[email protected] --unsafe-perm=true --allow-root
ng update @angular/cli @angular/core
References
https://update.angular.io/
https://stackoverflow.com/questions/43931986/how-to-upgrade-angular-cli-to-the-latest-version
https://stackoverflow.com/questions/38323880/error-eacces-permission-denied