title: Xamarin Android : "Bundle assemblies into native code" throw error on TFS build server
body: <p>I got this error when I build Xamarin Android solution on TFS build server with project option "Bundle assemblies into native code" enabled :</p>
  
  <blockquote>
    <p>"C:\Program Files
    (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets (1991):
    Missing Android NDK toolchains directory '\toolchains'. Please install
    the Android NDK."</p>
  </blockquote>
  
  <p>I checked Visual Studio Xamarin options on server and NDK path is defined correctly.</p>