Hi,

Suddenly I get an System.Web.HttpCompileException when I overide RenderMvcController.Index and tries to return the model. It worked fine yesterday and i haven't done any changes to the code...

The code looks like this:

public abstract class KeyCodePageController : Umbraco.Web.Mvc.RenderMvcController
    {
        protected void SetSessionShowHeaderState()
        {
            if (Request["showHeader"] == "0")
            {
                Session["showHeader"] = true;
            }
        }

        private void SetShowHeaderViewbagState()
        {
            if (Session["showHeader"] != null)
            {
                ViewBag.ShowHeader = Session["showHeader"];
            }
        }

        public override ActionResult Index(RenderModel model)
        {
            SetShowHeaderViewbagState();
            return base.Index(model);
        }
    }

I get "An exception of type 'System.Web.HttpCompileException' occurred in System.Web.dll"

In the browser I get this error:
"system.web.http.apicontroller' is defined in an assembly that is not referenced.  You must add a reference to the assambly System.Web.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35."

But I alredy have a reference to this assambly...

Please help me, this is driving me crasy.