Failed to load resource after made into VS project

Hi All,
I’m asking for help with something. After converting my Ionic project into a VS project, and installing the dependencies (i think it was, like, npm-bower or something like that?) it broke down and after ionic serveing it, it says that angular is not defined. I cannot revert it back as I do not know what the conversion did. Is there any way I can fix this?
Thanks in advance,