MVVM Light “Type Not Found in cache”

Question

I\'m trying to convert my Windows Phone 8 Silverlight application to an 8.1 Phone app as part of a universal app. I don\'t know if thats relevant because this is the first t

Answer 1

The answer was a fairly simple mistake. This bit was not being executed in design mode

SimpleIoc.Default.Register();

My code for SimpleIoc.Default.Register(); was inside an if statement that was never executed in design mode.