Error on Page Create. "Object reference not set to an i

Posted by Community Admin on 01-Sep-2011 00:00

Hi guys,
I had everything fine up til I deployed my solution. Its giving me error 'Object reference not set to an instance of an object.' on alert when I add a translation page (see CreatePage.png):

Following is the request that I copied from browser HTTP request inspection console.

GET mydomain.com/.../ 500 (Object reference not set to an instance of an object.)

I have 3 languages added to my website English, Arabic and French. It gives me above error when I try to create any French page and few Arabic pages as well.

I dont know what and where is anything wrong?! :s

There is an empty page as well in the Pages section which is not getting deleted which actually doesnt exist. It doesnt have any title, url and content but still I cant get rid of it (see EmptyPage.png).

Posted by Community Admin on 02-Sep-2011 00:00

Hello Saad,

Can you tell me how did you managed to deploy your website? Prior to deploying it did you experience any problems publishing a page? When did you noticed the appearance of the empty page? The problem is probably coming of false records in your database, which might be related to the empty page.

Regards,
Victor Velev
the Telerik team

Thank you for being the most amazing .NET community! Your unfailing support is what helps us charge forward! We'd appreciate your vote for Telerik in this year's DevProConnections Awards. We are competing in mind-blowing 20 categories and every vote counts! VOTE for Telerik NOW >>

Posted by Community Admin on 02-Sep-2011 00:00

Before deployment I did change few templates of all the pages I had on the site. The way I did this could be wrong that I excluded those masterpages from my solution and referred all the pages with the newly added templates one by one.
From that time, I had this empty page but only for one page while others did not come out with any problems. And I didn`t face any problem in adding/editing a page of different translations.

I wasn`t bothered with that empty page but after deployment I started having this problem in adding/editing pages other than default language (that is English in my case).

I executed the statement below to see if there is any false page. It gave me 5-6 rows.

SELECT * FROM [dbo].[sf_draft_pages] WHERE page_id IS NULL

Posted by Community Admin on 03-Sep-2011 00:00

Hello Saad,

Have you tried associating the pages to the new template and excluding the old masterpages afterwards? The issue may be a result of some false records left in the database as the query suggests. Also have you tried removing the records?

Regards,
Victor Velev
the Telerik team

Thank you for being the most amazing .NET community! Your unfailing support is what helps us charge forward! We'd appreciate your vote for Telerik in this year's DevProConnections Awards. We are competing in mind-blowing 20 categories and every vote counts! VOTE for Telerik NOW >>

Posted by Community Admin on 03-Sep-2011 00:00

Yes, I associated all the pages with new templates and excluded old templates from solution and as well as deleted from Sitefinity Backend.
I did not try removing the false records as its on production server right now and I don`t want it to be messed up.

Now, I deleted all the pages and tried recreating them. But I am facing this again!!!

Posted by Community Admin on 06-Sep-2011 00:00

Anyone??

Posted by Community Admin on 06-Sep-2011 00:00

Here is the trace:

<E2ETraceEvent xmlns="http://schemas.microsoft.com/2004/06/E2ETraceEvent">

<System xmlns="http://schemas.microsoft.com/2004/06/windows/eventlog/system">

<EventID>131076</EventID>

<Type>3</Type>

<SubType Name="Error">0</SubType>

<Level>2</Level>

<TimeCreated SystemTime="2011-09-06T11:17:32.1930345Z" />

<Source Name="System.ServiceModel" />

<Correlation ActivityID="6dcdc518-c460-4bdf-8251-9f9e3d2df201" />

<Execution ProcessName="w3wp" ProcessID="5092" ThreadID="7" />

<Channel />

<Computer>STAGING</Computer>

</System>

<ApplicationData>

<TraceData>

<DataItem>

<TraceRecord xmlns="http://schemas.microsoft.com/2004/10/E2ETraceEvent/TraceRecord" Severity="Error">

<TraceIdentifier>http://msdn.microsoft.com/en-US/library/System.ServiceModel.Diagnostics.TraceHandledException.aspx<;/TraceIdentifier>

<Description>Handling an exception.</Description>

<AppDomain>/LM/W3SVC/11505164/Root/1410-7-129597811848312809</AppDomain>

<Exception>

<ExceptionType>System.NullReferenceException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType>

<Message>Object reference not set to an instance of an object.</Message>

<StackTrace>

at Telerik.Sitefinity.Modules.Pages.Web.Services.Model.PageViewModel..ctor(PageNode pageNode, PageDataProvider provider, Boolean resolveToUserCreatedNode, Boolean excludeDecisions)

at Telerik.Sitefinity.Modules.Pages.Web.Services.PagesService.GetPagesInternal(PageLocation location, String pageFilterString, String sortExpression, Int32 skip, Int32 take, String filter)

at Telerik.Sitefinity.Modules.Pages.Web.Services.PagesService.GetPagesInternal(Boolean hierarchyMode, String root, String pageFilter, String sortExpression, Int32 skip, Int32 take, String filter)

at Telerik.Sitefinity.Modules.Pages.Web.Services.PagesService.GetPages(String pageFilter, Boolean hierarchyMode, String sortExpression, Int32 skip, Int32 take, String filter, String root)

at SyncInvokeGetPages(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.ProcessMessage41(MessageRpc& rpc)

at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4(MessageRpc& rpc)

at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage31(MessageRpc& rpc)

at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage3(MessageRpc& rpc)

at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2(MessageRpc& rpc)

at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc)

at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage1(MessageRpc& rpc)

at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)

</StackTrace>

<ExceptionString>System.NullReferenceException: Object reference not set to an instance of an object.

at Telerik.Sitefinity.Modules.Pages.Web.Services.Model.PageViewModel..ctor(PageNode pageNode, PageDataProvider provider, Boolean resolveToUserCreatedNode, Boolean excludeDecisions)

at Telerik.Sitefinity.Modules.Pages.Web.Services.PagesService.GetPagesInternal(PageLocation location, String pageFilterString, String sortExpression, Int32 skip, Int32 take, String filter)

at Telerik.Sitefinity.Modules.Pages.Web.Services.PagesService.GetPagesInternal(Boolean hierarchyMode, String root, String pageFilter, String sortExpression, Int32 skip, Int32 take, String filter)

at Telerik.Sitefinity.Modules.Pages.Web.Services.PagesService.GetPages(String pageFilter, Boolean hierarchyMode, String sortExpression, Int32 skip, Int32 take, String filter, String root)