I have created an App using angular-fullstack generator , for my previous projects i got grunt upon creation of the app ; But for this project i got gulp instead of grunt. I followed the same procedure like i did for my previous apps. Did yeoman replace grunt with gulp in the recent time ?
The yeoman generator (generator-angular-fullstack) has been updated to use Gulp (and lots of other changes). The git repository for it has a good changelog - I am sure you can go back to an older version.