XAML Designer not loading WinRT Toolkit for windows phone 8.1

Question

I'm trying to use the WinRT Toolkit for wp 8.1 in my project. I installed the package from nuget and have written this snippet in the main grid.The Emulator works just fine. but The XAML Designer is not loading the control, what do I need to do?

<faysal:CascadingTextBlock 
        HorizontalAlignment="Center"
        VerticalAlignment="Center"
        Text="fafdsda"
        FontSize="35"
        />

the namespace in the xaml is like below

xmlns:faysal="using:WinRTXamlToolkit.Controls"

Answer 1

WinRT XAML Toolkit doesn't have good support for design view unfortunately. CascadingTextBlock is one of the controls that simply doesn't show up in the designer.