title: Specify location for android api for AVD Manager
body: <p>Today, I decided to try Android Studio. When opening AVD Manager from the <code>Tools &gt; Android &gt; AVD Manager</code> menu on Android Studio, the list shows that the AVD named DroidBox fails because of "Unknown target android-16". I created that Virtual Device back when I used Eclipse for Android programming.</p>
  
  <p>I have android-16 downloaded on my system (I know the path to the dir, and it has worked before), but apparently the location isn't being seen.</p>
  
  <p>How can I tell AVD Manager where to find the directory?</p>