Ionic 2.0: Uncaught ReferenceError: ionic is not defined

Ionic Framework ionic-v3
8

I have tried going to:

http://localhost:8100/?ionicPlatform=android
instead of
http://localhost:8100/?ionicplatform=android

As she mentioned: Ionic 2 - Uncaught ReferenceError: ionic is not defined

So, now I have no this error.