After implementing the PhoneApplicationFrame I get after every ChooserTask(Email, Phonenumber)
"Navigation is only supported to relative URIs that are fragments, or begin with '/', or which contain ';component/'.\r\nParameter name: uri"
Implemented the PhoneApplicationFrame like this:
// Create the frame but don't set it as RootVisual yet; this allows the splash
// screen to remain active until the application is ready to render.
RadTransition transition =
RadPhoneApplicationFrame frame =
frame.Transition = transition;
RootFrame = frame;
////RootFrame = new PhoneApplicationFrame();
RootFrame.Navigated += CompleteInitializePhoneApplication;
// Handle navigation failures
RootFrame.NavigationFailed += RootFrame_NavigationFailed;
// Ensure we don't initialize again