VS 2015 Update 1 - Claiming I am debugging a release build

Question

After updating to VS 2015 update 1, if I run a web project (MVC), stop the application, then try to run it again, VS stops and pops up a dialog claiming

Answer 1

I have tried all the answers, and the one worked for me is remove some NuGet package, not just the reference, but remove the package, in my case PostSharp. At first I tried to remove the reference from all the projects, and it doesn't work, then I just removed the packages from the manager. I don't what exactly the reason, but that's what solved my problems, hope it could help someone out there.