Type locator issue

        protected void Application_Start(object sender, EventArgs e)
        {
            System.Web.Hosting.HostingEnvironment.RegisterVirtualPathProvider(new IdeaBlade.EntityModel.Web.ServiceVirtualPathProvider());
            AddType("TaxOffice.Model.OwnerAddress, TaxOffice.Model.SL, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null");
            AddType("SMI.Common.Model.Address, SMI.Common.Model.SL, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null");
            var systemMapping = (Dictionary<string, string>)typeof(TypeWrapper).GetField("__systemAssemblyMapping", BindingFlags.Static | BindingFlags.NonPublic).GetValue(null);
            systemMapping.Add("Model.SL", "Model");
        }

        public bool AddType(string name)
        {
            try
            {
                var wrapper = new TypeWrapper(null);
                wrapper.GetType().GetProperty("AssemblyQualifiedName").SetValue(wrapper, name);
                wrapper.GetType().GetProperty("IsNull").SetValue(wrapper, false);
                return wrapper.Type != null;
            }
            catch
            {
                return false;
            }
        }