Since CoronaSDK 2015.2603 for windows no plugins are being being included in builds.

Solar2D Daily Builds and Public Releases
#21

Watch the next couple of daily builds.  I believe they fixed it today.

Rob

#22

The Android plugin issue has been fixed and is in build 2614.

#23

Everything is working great.  on both windows with android and mac with iOS and android.

thanks for the quick fix.