Recently I have downloaded Visual Studio 2013 ultimate, and I already had Visual Studio 2012 professional which was working fine.
However, after installing the VS2013, all of my VS2012 projects won't load. Even won't let me add any new files to the projects.
So, I captured the activity log by running the devenv.exe with devenv.exe /log
command. An error was occur during opening up projects.
ERROR Extension will not be loaded because an extension with the same ID 'Microsoft.Windows.DevelopmentKit.Desktop' is already loaded at C:\PROGRAM FILES (X86)\COMMON FILES\MICROSOFT\EXTENSIONMANAGER\EXTENSIONS\MICROSOFT\WINDOWS KITS\8.0\DESKTOP SDK... C:\PROGRAM FILES (X86)\COMMON FILES\MICROSOFT\EXTENSIONMANAGER\EXTENSIONS\MICROSOFT\WINDOWS KITS\8.1\DESKTOP SDK\ Extension Manager
Can anyone help me solving the problem?