ASP.Net MVC 3.0 "Error Executing Child Request" on Development Server but works fine on local machine

Question

here is my stack trace


    [NullReferenceException: Object reference not set to an instance of an object.]
       HRORx.Controllers.LeftNavLinksController.LeftNavServices() in C:\Common\PRO\HRORx\Controllers\LeftNavLinksController.cs:30
       lambda_method(Closure , ControllerBase , Object[] ) +78
       System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +263
       System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +38
       System.Web.Mvc.c__DisplayClass15.b__12() +128
       System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +826410
       System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +314
       System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +825632
       System.Web.Mvc.Controller.ExecuteCore() +159
       System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +335
       System.Web.Mvc.c__DisplayClassb.b__5() +62
       System.Web.Mvc.Async.c__DisplayClass1.b__0() +20
       System.Web.Mvc.c__DisplayClasse.b__d() +54
       System.Web.Mvc.c__DisplayClass4.b__3() +15
       System.Web.Mvc.ServerExecuteHttpHandlerWrapper.Wrap(Func`1 func) +41
       System.Web.HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride) +1443

    [HttpException (0x80004005): Error executing child request for handler 'System.Web.Mvc.HttpHandlerUtil+ServerExecuteHttpHandlerAsyncWrapper'.]
       System.Web.HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride) +2515
       System.Web.HttpServerUtility.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage) +242
       System.Web.HttpServerUtilityWrapper.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm) +94
       System.Web.Mvc.Html.ChildActionExtensions.ActionHelper(HtmlHelper htmlHelper, String actionName, String controllerName, RouteValueDictionary routeValues, TextWriter textWriter) +834
       System.Web.Mvc.Html.ChildActionExtensions.Action(HtmlHelper htmlHelper, String actionName, String controllerName, RouteValueDictionary routeValues) +123
       ASP._Page_Views_Shared__LeftNavLinks_cshtml.Execute() in c:\Server\Web\rx\Views\Shared\_LeftNavLinks.cshtml:2
       System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +280
       System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +104
       System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +173
       System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData) +158
       ASP._Page_Views_Shared__Layout_cshtml.Execute() in c:\Server\Web\rx\Views\Shared\_Layout.cshtml:54
       System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +280
       System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +104
       System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +173
       System.Web.WebPages.WebPageBase.Write(HelperResult result) +89
       System.Web.WebPages.WebPageBase.RenderSurrounding(String partialViewName, Action`1 body) +234
       System.Web.WebPages.WebPageBase.PopContext() +222
       System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +384
       System.Web.Mvc.c__DisplayClass1c.b__19() +33
       System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +825604
       System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) +265
       System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +825632
       System.Web.Mvc.Controller.ExecuteCore() +159
       System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +335
       System.Web.Mvc.c__DisplayClassb.b__5() +62
       System.Web.Mvc.Async.c__DisplayClass1.b__0() +20
       System.Web.Mvc.c__DisplayClasse.b__d() +54
       System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +469
       System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +375

I can build and run application with no issues on local machine
but when I deploy it to the Development Server, I get this error.
Any help would be greatly appreciated.
Thanks

HashTagDevDude HashTagDevDude · Accepted Answer · 2011-10-05T16:13:58

The stack trace is complaining about line 30 of C:\Common\PRO\HRORx\Controllers\LeftNavLinksController.cs. Have you null checked everything on that line? Is is possible to post what is happening on or around that line?

Also, are you using LINQ in that controller method? I ran into a similar error where I was returning a list that contained null values from a table. The data was different between my local database (had no nulls) and the production environment (which had nulls).

ASP.Net MVC 3.0 "Error Executing Child Request" on Development Server but works fine on local machine

1 Answers