title: Invalid license. Please reactivate Xamarin.Android
body: <p>Occasionally I get the following licence error when I try to build my Xamarin project in Visual Studio.</p>
  
  <pre><code>Invalid license. Please reactivate Xamarin.Android  P1SyncMono
  Unable to determine license edition.    P1SyncMono
  </code></pre>
  
  <p>I am fully licensed with Enterprise for Xamarin.Android (and Xamarin.iOS)</p>