title: Xamarin 5 UWP - Issue with DisplayAlert
body: <p>Me and my team have just migrated our cross-platform XF 4 project to XF5.</p>
  <p>The only issue that we have encountered thus far is the following:
  Our UWP App was throwing an unhandled App.Xaml exception when navigating to a different page for no apparent reason and after some search, installing the nugget <strong>Microsoft.UI.Xaml</strong> explicitly fixed that issue, even though that nugget package is supposed to be installed along with XF5 nugget.</p>
  <p>But right now a new issue has emerged. When calling the <code>await Application.Current.MainPage.**DisplayAlert**(szTitle, szMessage, btnOk, btnCancel);</code> from the UI thread the alert gets displayed properly but when I click on one of its buttons Ι get an unhandled exception</p>
  <p><code>&quot;No installed components were detected. The property path '(controls:AnimatedIcon.State)' could not be resolved for a Setter.&quot; where controls is defined as xmlns:controls=&quot;using:Microsoft.UI.Xaml.Controls&quot;</code></p>
  <p>Could you please help me find out what is going wrong?<br />
  As far as I know the <code>DisplayAlert()</code> is handled by <code>Xamarin.Forms</code>.</p>