Server Error in '/' Application.

Cannot perform runtime binding on a null reference

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: Microsoft.CSharp.RuntimeBinder.RuntimeBinderException: Cannot perform runtime binding on a null reference

Source Error:


Line 285:		@FilterNav.CSS()
Line 286:	}
Line 287:	@FilterNav.Javascript()
Line 288:
Line 289:	

Source File: c:\inetpub\wwwroot\Shared\Custom\_Layout.cshtml    Line: 287

Stack Trace:


[RuntimeBinderException: Cannot perform runtime binding on a null reference]
   CallSite.Target(Closure , CallSite , Object , String ) +142
   System.Dynamic.UpdateDelegates.UpdateAndExecute2(CallSite site, T0 arg0, T1 arg1) +2785600
   CallSite.Target(Closure , CallSite , Object , String ) +193
   ASP.iStarLister.GetClasses(String DeptCode, String SortField) +925
   ASP.FilterNav.GetClasses(String DeptBrowse, String ClassBrowse, String SubclassBrowse) +58
   ASP.FilterNav.DisplayLeftNav() +196
   ASP.FilterNav.<Javascript>b__7(TextWriter __razor_helper_writer) +2918
   System.Web.WebPages.HelperResult.WriteTo(TextWriter writer) +10
   System.Web.WebPages.WebPageBase.Write(HelperResult result) +80
   ASP._Page_Shared_Custom__Layout_cshtml.Execute() in c:\inetpub\wwwroot\Shared\Custom\_Layout.cshtml:287
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +197
   System.Web.WebPages.WebPage.ExecutePageHierarchy(IEnumerable`1 executors) +69
   System.Web.WebPages.WebPage.ExecutePageHierarchy() +131
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +90
   System.Web.WebPages.<>c__DisplayClass7.<RenderPageCore>b__6(TextWriter writer) +231
   System.Web.WebPages.HelperResult.WriteTo(TextWriter writer) +10
   System.Web.WebPages.WebPageBase.Write(HelperResult result) +80
   System.Web.WebPages.WebPageBase.RenderSurrounding(String partialViewName, Action`1 body) +63
   System.Web.WebPages.WebPageBase.PopContext() +263
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +98
   System.Web.WebPages.<>c__DisplayClass7.<RenderPageCore>b__6(TextWriter writer) +231
   System.Web.WebPages.HelperResult.WriteTo(TextWriter writer) +10
   System.Web.WebPages.WebPageBase.Write(HelperResult result) +80
   CallSite.Target(Closure , CallSite , _Page_Browse_cshtml , Object ) +137
   ASP._Page_Browse_cshtml.Execute() in c:\inetpub\wwwroot\Browse.cshtml:6
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +197
   System.Web.WebPages.WebPage.ExecutePageHierarchy(IEnumerable`1 executors) +69
   System.Web.WebPages.WebPage.ExecutePageHierarchy() +131
   System.Web.WebPages.StartPage.RunPage() +17
   System.Web.WebPages.StartPage.ExecutePageHierarchy() +64
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +78
   System.Web.WebPages.WebPageHttpHandler.ProcessRequestInternal(HttpContextBase httpContext) +116


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.2623.0