title: Xaml designer in windows phone 8.0 (cannot create an instance of my custom control)
body: <p>I'm creating a custom control for windows phone 8, in this control I use a class from a Windows Runtime Component (.winmd).</p>
  
  <p>The problem is in the xaml designr my custom control not appear, but the control works fine in rut mode.</p>
  
  <p>(As I mentioned above this is in design time (Xaml designer)) :</p>
  
  <p>"Cannot create instance of MyControl", and the inner exception is:</p>
  
  <p>TypeLoadException: Requested Windows Runtime type "WindowsPhoneRuntimeComponent1.WindowsPhoneRuntimeComponent" is not registered.</p>