Google Glass (Not installed)

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.

enter image description here

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

enter image description here

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

enter image description here

can anyone please help me if the is something wrong that i am doing.

will appreciate your Help.

Solution

In my case, I needed to make sure I also installed the latest Android SDK Tools, Android SDK Platform-tools, and Android SDK Build-tools. Lastly, also install Android SDK Build-tools rev. 20. All four of these are under "Tools" in the SDK Manager.

Downloading the above allowed me to create a new Glass project.

Also try: Go to File -> Project Structure -> SDK Location. Make sure it is the correct SDK directory.