Windows Phone 8 app does not contain a definition for InitializeComponent

Question

I have just downloaded the 14 CTP version of Visual Studio and created a blank app for Windows Phone. I tried to open the MainPage.xaml and the designer shows u

Answer 1

the same started to happen to me today; to reproduce the issue, I just open Visual Studio 2013 Update 4, create a blank Windows Phone 8.1 and double click on MainPage.xaml.

I solved by performing the following (a mix of what I've read around the web):

• exit all Visual Studio instances
• delete everything on %localappdata%\Microsoft\VisualStudio\12.0\Designer\ShadowCache

• open a command prompt with admin rights and execute the following commands:

  pushd %VS110COMNTOOLS%
  icacls ..\IDE /grant *S-1-15-2-1:(OI)(F)
  icacls ..\IDE /grant *S-1-15-2-1:(CI)(F)
  icacls ..\IDE\PrivateAssemblies /grant *S-1-15-2-1:(OI)(F)
  icacls ..\IDE\PrivateAssemblies /grant *S-1-15-2-1:(CI)(F)
  icacls ..\IDE\PublicAssemblies /grant *S-1-15-2-1:(OI)(F)
  icacls ..\IDE\PublicAssemblies /grant *S-1-15-2-1:(CI)(F)
  

finally, reboot. worked on Windows 8.1 64-bit.