Switching 4.1 to 4.2 module

Hey all,
I have a module written in Sitefinity 4.1 . I've switched to sitefinity 4.2, but my custom modules have following error:

Unable to upgrade database schema metadataSource provided by '[ModuleName].Data.Implementation.OpenAccessProvider': No metadata has been registered for class [ModuleName].Model.ArticleItem. (This usually indicates, that either this class is not declared persistent or it is declared persistent but not enhanced. The class was loaded from file:///C:/Program Files/Telerik/Sitefinity 4.2/Projects/[projectname]/bin/[moduleName].DLL.)
* ArticleItem is an instance of the module.

Cheers,
Majid

Hi Majid,

The error indicates your module is not enhanced for your Sitefinity 4.2. Make sure you have Sitefinity SDK installed. Enhancing of modules is done with enhancer.exe located in SDK/Content/Common/Dependencies.
Then make sure the .csproj file of your module looks like this.

Hi Majid,

Sitefinity doesn`t migrate modules when sitefinity project is upgraded to a higher version. Can you open a support ticket and send me the module before you upgraded it (as it was working in previous version). I will try to add it to Sitefinity 4.2 project at my end.

Additionally I presume you have Sitefinity 4.2 SDK installed(with the new version of OpenAccess). It is needed for module enhancing because enhancer.exe is located in

Hi Stanislav,
Thanks for your reply.
I've sent a support ticket attached full solution of my project.The ticket number is 460616.

Cheers,
Majid

Hi,
The problem must be resolved urgently. please take a look at support ticket referred above.

Thanks,
Majid

Hello Majid,

I have downloaded and successfully installed your modules. You have to enhance the modules with this like in each module .csproj file

HI Stanislav,
1. I found out my problem wasn't about the modules migration, It's about Navigation controls.
My modules work well in Sitefinity 4.2 now , but I have the following error:

Exception of type 'System.OutOfMemoryException' was thrown.

[NullReferenceException: Object reference not set to an instance of an object.]
   Telerik.Sitefinity.Web.UI.ContentUI.Views.Backend.Detail.DetailFormView.SetUpNavigation(IDetailFormViewDefinition def) +17
   Telerik.Sitefinity.Web.UI.ContentUI.Views.Backend.Detail.DetailFormView.OnPreRender(EventArgs e) +52
   System.Web.UI.Control.PreRenderRecursiveInternal() +134
   System.Web.UI.Control.PreRenderRecursiveInternal() +204
   System.Web.UI.Control.PreRenderRecursiveInternal() +204
   System.Web.UI.Control.PreRenderRecursiveInternal() +204
   System.Web.UI.Control.PreRenderRecursiveInternal() +204
   System.Web.UI.Control.PreRenderRecursiveInternal() +204
   System.Web.UI.Control.PreRenderRecursiveInternal() +204
   System.Web.UI.Control.PreRenderRecursiveInternal() +204
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6881

Hi Majid,

1. This can be caused by multilingual templates on the site. It is possible that some overlapping language templates might be causing the issue.
A template might causing an internal loop which fills the memory of the server thus throwing an exception. Please check if you have any layout controls that might be causing the issue or if you have applied other changes to the masterpage that you use for your pages that are throwing the error.
Resolving this will include examining the template that a problematic page uses and its layout controls, making changes to the layout controls or removing and then adding new language version to page template might resolve it. Excuse me for the resolution that is not focused on simple steps, but the random issue acts unpredictable and there are many factors that take part in its cause.
The previous stack trace: