title: Can't build any project in Xamarin Android
body: <p>I've installed VS 2015 community with Xamarin. I can't build a new android project even I didn't add any thing ,simply it is new project.
  the error message as shown in photo.
  did lots of search but still couldn't figure out what leads to this error.</p>
  
  <p>-there are some answer for this question before which I've gone through them and they don't work to fix this issue.</p>
  
  <p>any help is appreciated.<a href="http://i.stack.imgur.com/jZxQc.png" rel="nofollow">The Error List in VS 2015</a></p>