gistfile1.txt

[NullReferenceException: Object reference not set to an instance of an object.]
   Microsoft.Practices.Unity.UnityContainer..ctor(UnityContainer parent) +32
   Microsoft.Practices.Unity.UnityContainer.CreateChildContainer() +38
   Unity.Mvc3.UnityDependencyResolver.get_ChildContainer() +276
   Unity.Mvc3.UnityDependencyResolver.GetService(Type serviceType) +59
   System.Web.Mvc.DefaultControllerActivator.Create(RequestContext requestContext, Type controllerType) +67

[InvalidOperationException: An error occurred when trying to create a controller of type '[MyCoolApp.ControllerClass]'. Make sure that the controller has a parameterless public constructor.]
   System.Web.Mvc.DefaultControllerActivator.Create(RequestContext requestContext, Type controllerType) +247
   System.Web.Mvc.DefaultControllerFactory.CreateController(RequestContext requestContext, String controllerName) +85
   System.Web.Mvc.MvcHandler.ProcessRequestInit(HttpContextBase httpContext, IController& controller, IControllerFactory& factory) +270
   System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state) +80
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +405
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +375

The issue is not the lack of a parameterless constructor on the controller as is advertised but the underlying NullReferenceException from my analysis.

Have you found any solution or workaround? got the same using version 3.5.1404.0