XAML Designer Failed to load

Question

I am trying to develop a Windows Phone app and I am using Visual Studio 2013 Update 4 for development.

I am using Pivot App (Windows Phone) for development.

My problem is, XAML designer failed to load. I did some search on StackOverflow and Google and found some solutions and none of them worked.

The solutions I tried so far are :

• Repair of a Visual Studio.
• Clearing Contents in C:\Users\<User>\AppData\Local\Microsoft\VisualStudio\12.0\Designer\ShadowCache (Answered here on StackOverflow
• Deleting ComponentModelCache from C:\Users\<User>\AppData\Local\Microsoft\VisualStudio\12.0

and none of these worked.

Please help me if anyone have solution.