I\'ve got vs2010 and vs2012 installed side by side. If I open up our MVC site in vs2010 and run it using the development web server it works fine, if I do the same thing in vs2
I have had this problem for my ASP.Net solution as well. There were no solutions for this problem on Stack Overflow or anywhere else.
Setup:
Visual Studio 2013 (but I think it will also work for vs 2010/2012 ASP.Net web application IIS express setup).
Our production environment never had this problem because it was running on IIS.
I have tried a lot to fix it, but I found one specific solution. I set the delayNotificationTimeout to 20 seconds, instead of the default of 5, which was not enough for our solutions to conjure up everything it needed to successfully run.
delayNotificationTimeout="20" />