I built a very simple .net MVC web project on Visual Studio 2013. I then pushed it to Github, when I cloned my project back onto my machine and tried to run it (on the same version of Visual Studio 2013) I got a lot of errors including:
"The type or namespace name 'ActionResult' could not be found (are you missing a using directive or an assembly reference?)"
"The type or namespace name 'Authorize' could not be found (are you missing a using directive or an assembly reference?)"
and many more (there are about 170 of those)
I also removed .gitignore at some point, just to be sure, it didn't help.