I\'ve created a new MVC Web application and I have references to Ninject.dll, Ninject.Web.Common.dll and Ninject.Web.MVC.dll.
Global.asax.cs:
You are deriving from NinjectHttpApplication AND you are using App_Start at the same time. Choose one! Read the docu of Ninject.MVC3 for more info.
NinjectHttpApplication
App_Start