Unhandled Activation Error

I just upgraded my Xamarin Studio. Apparently I am using something that requires the Business license. I am currently using the trial license and have about 10 days or so remaining. I was able to login to the store to download components, but when I try and debug I get the 'Unhandled Activation Error' that seems to be going around right now. I tried a complete uninstall and reinstall, and I tried lowering the target framework. Neither has resolved the issue. Any ideas? I am guessing that it thinks the trial version license is no longer valid, but I started it about 19 days ago. Thanks for any help. Here is the stacktrace:

System.AggregateException: A Task's exception(s) were not observed either by Waiting on the Task or accessing its Exception property. As a result, the unobserved exception was rethrown by the finalizer thread. ---> System.UriFormatException: Invalid URI: The format of the URI could not be determined.
   at System.Uri.CreateThis(String uri, Boolean dontEscape, UriKind uriKind)
   at System.Uri..ctor(String uriString)
   at Xwt.FormattedText.<>c__DisplayClass4.<PushSpan>b__3(String name, String val)
   at Xwt.FormattedText.ReadXmlAttributes(String markup, Int32& i, Func`3 callback)
   at Xwt.FormattedText.PushSpan(Stack`1 formatStack, String markup, Int32 textIndex, Int32& i)
   at Xwt.FormattedText.ParseMarkup(String markup)
   at Xwt.FormattedText.FromMarkup(String markup)
   at Xwt.Label.set_Markup(String value)
   at Xamarin.Components.Ide.Activation.ActivationDialogHeader.set_DetailText(String value)
   at Xamarin.Components.Ide.Activation.ActivationDialog.DisplayWorkflowStep(ActivationWorkflowStep step)
   at Xamarin.Components.Ide.Activation.ActivationDialog.DisplayWorkflowException(Exception ex)
   at Xamarin.Components.Ide.Activation.ActivationDialog.<>c__DisplayClass13.<StartSpinnerTaskAndScheduleContinuation>b__12(Task t)
   at System.Threading.Tasks.ContinuationTaskFromTask.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()
   --- End of inner exception stack trace ---
---> (Inner Exception #0) System.UriFormatException: Invalid URI: The format of the URI could not be determined.
   at System.Uri.CreateThis(String uri, Boolean dontEscape, UriKind uriKind)
   at System.Uri..ctor(String uriString)
   at Xwt.FormattedText.<>c__DisplayClass4.<PushSpan>b__3(String name, String val)
   at Xwt.FormattedText.ReadXmlAttributes(String markup, Int32& i, Func`3 callback)
   at Xwt.FormattedText.PushSpan(Stack`1 formatStack, String markup, Int32 textIndex, Int32& i)
   at Xwt.FormattedText.ParseMarkup(String markup)
   at Xwt.FormattedText.FromMarkup(String markup)
   at Xwt.Label.set_Markup(String value)
   at Xamarin.Components.Ide.Activation.ActivationDialogHeader.set_DetailText(String value)
   at Xamarin.Components.Ide.Activation.ActivationDialog.DisplayWorkflowStep(ActivationWorkflowStep step)
   at Xamarin.Components.Ide.Activation.ActivationDialog.DisplayWorkflowException(Exception ex)
   at Xamarin.Components.Ide.Activation.ActivationDialog.<>c__DisplayClass13.<StartSpinnerTaskAndScheduleContinuation>b__12(Task t)
   at System.Threading.Tasks.ContinuationTaskFromTask.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()<---