While attempting to debug an MVC application in Visual Studio 2012, Visual Studio launches two IIS Express processes, and when the second inevitably fails, the debugger bails. I have written up a very comprehensive SO post, please see here for more information: http://stackoverflow.com/questions/14762646/debugging-mvc-application-in-vs2012-attempts-to-start-iis-express-twice
Hi qbrian,
I was getting the same issue sometimes. If you are using Skype just quite from skype and try again.
This is the funny answer but it works for me every time. Please try once.
Regards,