.NET for Android error XA0137
The 'run-as' command failed with '{0}'.
Fast Deployment is not currently supported on this device. Please file an issue with the exact error message using the 'Help->Send Feedback->Report a Problem' menu item in Visual Studio or 'Help->Report a Problem' in Visual Studio for Mac. If possible attach a full diagnostic build log to the feedback report as this will help us diagnose the issue.