Need help with localization of my Ionic 2 application

Hey guys, I am trying to add a few languages to my ionic 2 application using ng-2 translate. I have all my jsons ready with the keys and translations but my build fails and the debugger gives me the following error message: Cannot find module “@angular/router”. I did npm install to make sure all the modules are there but I still get the same error message. Any help would be appreciated. Thanks!!