问题
When I create a new universal application, XAML designer doesn't load and it shows the following exception instead:

回答1:
Try to check and install Windows updates, it helped in my case.
回答2:
Reinstalling or repairing Visual Studio might help.
回答3:
In my case uninstalling the App you're developing (Start Menu -> All Apps -> Your App -> Right click -> Uninstall) and rebuilding the solution/re-running the app worked.
来源:https://stackoverflow.com/questions/35586371/uwp-xaml-designer-doesnt-load