I am new to Android Studio and google-Glass.
I am trying to create a knew project that will use google-glass but my problem is when I have to Check/select glass it is Disabled and I do not know how to fix this problem.
See the Image below.

and here is my SDK that shows that i have installed APK 19.

and with the Image below it shows that the glass does appear on Android Studio

can anyone please help me if the is something wrong that i am doing.
will appreciate your Help.