Server Error in '/' Application.

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:


Line 6:      List<EWS.CMS.ContentExtendFieldsValues> listMedTypeValues = ViewBag.listMedTypeValues;
Line 7:      EWS.CMS.ContentExtendFieldsValues efv = listMedTypeValues.Find(m => m.ID == ViewBag.id);
Line 8:      ViewBag.SEO_Title = efv.FieldText+" - 健康资讯";
Line 9:  }
Line 10:  @section SectionHeaderCss

Source File: e:\site\hao.vdoctor.cn\Views\Health\Cate.cshtml    Line: 8

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   ASP._Page_Views_health_Cate_cshtml.Execute() in e:\site\hao.vdoctor.cn\Views\Health\Cate.cshtml:8
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +251
   System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +127
   System.Web.WebPages.StartPage.ExecutePageHierarchy() +87
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +103
   System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +356
   System.Web.Mvc.<>c__DisplayClass1c.<InvokeActionResultWithFilters>b__19() +30
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +415
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +415
   System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +627
   System.Web.Mvc.Controller.ExecuteCore() +137
   System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +91
   System.Web.Mvc.<>c__DisplayClassb.<BeginProcessRequest>b__5() +54
   System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +22
   System.Web.Mvc.<>c__DisplayClasse.<EndProcessRequest>b__d() +51
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +607
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +134


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.2114.0