update angular cli

npm install -g @angular/cli
ng new my-dream-app
cd my-dream-app
ng serve

npm uninstall -g angular-cli
npm install -g @angular/cli@latest

For updating angular cli type this command :
ng update @angular/cli @angular/core   

npm update @angular/cli -g

      
        content_copy
      
      ng update @angular/cli @angular/core
    

ng update @angular/[email protected] @angular/[email protected]

rm -rf node_modules
npm uninstall --save-dev angular-cli
npm install --save-dev @angular/cli@latest
npm install