error while starting visual studio

Question

hi

i use visual studio 2013 and i install VS2013 Update 4. after install this update

when i start visual studio and  attempted to create a WPF project i face with this error:

An exception has been encountered. This may be caused by an extension.

You can get more information by examining the file 'C:\Users\Soroosh\AppData\Roaming\Microsoft\VisualStudio\12.0\ActivityLog.xml'.

it doesn't show for Windows Forms projects.

 

how to solve this error? 

 

thanks