title: Xamarin.Android no stack trace in async method
body: <p>Anybody maybe found some workaround for this bug:</p>
  
  <p><a href="https://bugzilla.xamarin.com/show_bug.cgi?id=30513" rel="noreferrer">https://bugzilla.xamarin.com/show_bug.cgi?id=30513</a></p>
  
  <p>?</p>
  
  <p>It drives me crazy... the screenshoot is the exception report I got from async method.</p>
  
  <p><img src="https://i.stack.imgur.com/ffnwB.png" alt="enter image description here"></p>