After installing the Visual Studio on fresh machine, I was getting this error dialog when open the Visual Studio: ( Click here if image is not display)
Error dialog box telling me to open the ActivityLog.xml file to see the possible answer. There are two methods you can follow to fix this issue.
1. Update the Visual Studio Patch: From Download Center of Microsoft.com, download the patch # KB2781514 to fix the editor package issue. Because visual studio may cause it to become unstable when the .NET 4.5 framework is updated.
2. Clear the ComponentModelCache folder: For Visual Studio 2013, it’s located in the %LOCALAPPDATA%\Microsoft\VisualStudio\12.0 folder.