Xamarin - Visual Studio stuck at zipalign.exe
<p>When trying to deploy an app in Android Device, VS is stuck here:</p>

<blockquote>
  <p>1>C:\Users\George\AppData\Local\Android\android-sdk\build-tools\23.0.1\zipalign.exe
  4 "C:\Users\George\Documents\Visual Studio
  2015\Projects\SGUotA-Xamarin\BBXamarin\BBXamarin\BBXamarin.Droid\bin\Debug\BBXamarin.Droid-Signed-Unaligned.apk"
  "bin\Debug\BBXamarin.Droid-Signed.apk"</p>
</blockquote>

<p>Can anyone propose a solution for this?
<a href="https://i.stack.imgur.com/hgdOA.png" rel="noreferrer">screenshot of the problem</a></p>