When I'm trying to open any solutions that worked fine before in Visual Studio 2012, the error "Package 'Visual C++ package' failed to load" keeps showing up. And the solution can't be opened.
I'm not sure what's wrong with my Visual Studio 2012 installation.
- click the TOOLS--->VISUAL STUDIO COMMAND PROMPT to open the command window
- input the command "devenv /Setup"
- open the visual studio 2012 again, it will works.
Source: http://happyivyli.blogspot.com/2013/07/visual-c-package-failed-to-load.html