title: My android sdk manager only shows api 17
body: <p>I want to download other android APIs and samples but my android SDK manager doesnt show me any other options than android sdk 4.2 API 17. Can anyone plz help me with this. Am I missing something? Thanx for your help</p>
  
  <p>I tried following link,
   <a href="http://developer.android.com/sdk/installing/adding-packages.html" rel="nofollow">http://developer.android.com/sdk/installing/adding-packages.html</a></p>