Getting an "Object reference not set to an instance of

Posted by Community Admin on 04-Aug-2018 22:08

Getting an "Object reference not set to an instance of an object" error when clicking Pages

All Replies

Posted by Community Admin on 13-Apr-2016 00:00

When in the backend and I click "Pages", I get a JavaScript alert with the error "Object reference not set to an instance of an object". The list of pages will not display and the loading icon plays indefinitely. This error just randomly starting happening. Any thoughts?

Here is a screencast -

Here is the error log output - 

Timestamp: 4/13/2016 9:48:39 PM

Message: HandlingInstanceID: 6a5bcd76-8df4-478a-be05-51e84a78130f
An exception of type 'System.NullReferenceException' occurred and was caught.
04/13/2016 17:48:39
Type : System.NullReferenceException, mscorlib, Version=, Culture=neutral, PublicKeyToken=b77a5c561934e089
Message : Object reference not set to an instance of an object.
Source : Telerik.Sitefinity
Help link : 
Data : System.Collections.ListDictionaryInternal
TargetSite : System.String GetParsedWorkflowStatus(Telerik.Sitefinity.IWorkflowItem, System.Globalization.CultureInfo, Telerik.Sitefinity.ILstring)
HResult : -2147467261
Stack Trace :    at Telerik.Sitefinity.WorkflowItemExtensions.GetParsedWorkflowStatus(IWorkflowItem workflowItem, CultureInfo culture, ILstring state)
   at Telerik.Sitefinity.Web.PageDataProxy.get_WorkflowStatusKey()
   at Telerik.Sitefinity.Modules.Pages.Web.Services.Model.PageViewModel.SetPageStatusText(PageSiteNode node, PageDataProxy data)
   at Telerik.Sitefinity.Modules.Pages.Web.Services.Model.PageViewModel..ctor(PageSiteNode siteNode, Boolean excludeDecisions)
   at Telerik.Sitefinity.Modules.Pages.Web.Services.PagesService.GetPagesAsTreeFromSitemap(String[] leafIds, String provider, Int32 nodesLimit, Int32 perLevelLimit, Int32 perSubtreeLimit, Int32 subtreesLimit, String root)
   at SyncInvokeGetPagesAsTree(Object , Object[] , Object[] )
   at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
   at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage31(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)

Additional Info:

MachineName : SERVER01
TimeStamp : 4/13/2016 9:48:39 PM
FullName : Telerik.Sitefinity.Utilities, Version=7.2.5310.0, Culture=neutral, PublicKeyToken=b28c218413bdf563
AppDomainName : /LM/W3SVC/1/ROOT-1-131050557096132000
ThreadIdentity : 
WindowsIdentity : IIS APPPOOL\Website
Requested URL : http://<urlremovedforpost>.com/Sitefinity/Services/Pages/PagesService.svc/tree/?root=f669d9a7-009d-4d83-ddaa-000000000002&hierarchyMode=true&provider=

Category: ErrorLog

Priority: 0

EventId: 90000

Severity: Error

Title:Enterprise Library Exception Handling

Machine: SERVER01

App Domain: /LM/W3SVC/1/ROOT-1-131050557096132000

ProcessId: 2564

Process Name: c:\windows\system32\inetsrv\w3wp.exe

Thread Name: 

Win32 ThreadId:5912

Extended Properties: 

Posted by Community Admin on 19-Apr-2016 00:00


Refer to this KB article to resolve the issue.

Stanislav Velikov

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