Help with Ionic 3 and node_modules

Hi Guys,
I have a problem when I tried to install node_modules in ionic 3. I installed it with the command ‘npm i @ ionic / angular’ because the alert did not work. I created the project or the app with the command ‘ionic start test tabs --type = angular’. Now I get a lot of errors since installing @ ionic / angular. And I mean this alert:
I hope you can help me
Yours sincerly