Value cannot be null.
Parameter name: key
   at System.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
   at System.Collections.Generic.Dictionary`2.FindEntry(TKey key)
   at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value)
   at Vici.Mvc.UrlParameterCollection.Add(String name, String value)
   at Vici.Mvc.UrlParameterCollection..ctor(NameValueCollection queryString)
   at Vici.Mvc.Url..ctor(String baseUrl, NameValueCollection queryString)
   at Vici.Mvc.Url.FromCurrent()
   at Vici.Mvc.UrlHolder..ctor()
   at Vici.Mvc.View.Render()
   at Vici.Mvc.RenderViewActionResult.Execute(HttpContextBase httpContext)
   at Vici.Mvc.MvcPageHandler.ProcessRequest(HttpContextBase httpContext)