TYPE html> Object reference not set to an instance of an object.

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 15:     UmbracoHelper umbracoHelper = new UmbracoHelper(UmbracoContext.Current);
Line 16:     IPublishedContent thisPage = umbracoHelper.TypedContent(pageId);
Line 17:     var titlePage = thisPage.GetPropertyValue<string>("title");
Line 18:     var subtitle = thisPage.GetPropertyValue<string>("subtitle");
Line 19:     var content = thisPage.GetPropertyValue<string>("content");

Source File: c:\inetpub\wwwroot\Umbraco.Mandarina\Views\Partials\NewsTemplate.cshtml    Line: 17

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   Umbraco.Web.PublishedContentExtensions.GetPropertyValue(IPublishedContent content, String alias, Boolean recurse, Boolean withDefaultValue, T defaultValue) +36
   Umbraco.Web.PublishedContentExtensions.GetPropertyValue(IPublishedContent content, String alias) +74
   ASP._Page_Views_Partials_NewsTemplate_cshtml.Execute() in c:\inetpub\wwwroot\Umbraco.Mandarina\Views\Partials\NewsTemplate.cshtml:17
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +251
   System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +147
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +121
   Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer) +199
   System.Web.Mvc.Html.RenderPartialExtensions.RenderPartial(HtmlHelper htmlHelper, String partialViewName) +98
   ASP._Page_Views_EnvironmentNode_cshtml.RenderPartial(String currentType, String[] contentValues, String partialViewName, HtmlHelper html) in c:\inetpub\wwwroot\Umbraco.Mandarina\Views\EnvironmentNode.cshtml:64
   ASP._Page_Views_EnvironmentNode_cshtml.RenderPartial(String currentType, String contentValues, String partialViewName, HtmlHelper html) in c:\inetpub\wwwroot\Umbraco.Mandarina\Views\EnvironmentNode.cshtml:57
   ASP._Page_Views_EnvironmentNode_cshtml.Execute() in c:\inetpub\wwwroot\Umbraco.Mandarina\Views\EnvironmentNode.cshtml:38
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +251
   System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +147
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +106
   Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer) +199
   System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +377
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) +90
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) +795
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) +795
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) +795
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) +81
   System.Web.Mvc.Async.<>c__DisplayClass21.<BeginInvokeAction>b__1e(IAsyncResult asyncResult) +188
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +38
   System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState) +32
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +73
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +52
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +39
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +38
   System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult asyncResult, ProcessRequestState innerState) +46
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +73
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +38
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +431
   System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +75
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +158


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4110.0