Hi

I have just upgraded a site from 4.11.3 to 6.0.2 and now my DocumentTypes are inaccessible. When I click on a Document Type in backoffice I get a nullreference exception

[NullReferenceException: Object reference not set to an instance of an object.]
   umbraco.controls.ContentTypeControlNew.SetupStructurePane() +847
   umbraco.controls.ContentTypeControlNew.OnInit(EventArgs e) +42
   System.Web.UI.Control.InitRecursive(Control namingContainer) +134
   System.Web.UI.Control.InitRecursive(Control namingContainer) +290
   System.Web.UI.Control.InitRecursive(Control namingContainer) +290
   System.Web.UI.Control.InitRecursive(Control namingContainer) +290
   System.Web.UI.Control.InitRecursive(Control namingContainer) +290
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeSta

Anyone seen anything like this and know how to fix it ?

Clearing the preview folder and republishing the entire site makes no difference.

I see that this query getfrequently executed but returns no rows (also with [published] = 'true')- don't know if it's related.

SELECT *
FROM [cmsDocument]
INNER JOIN [cmsContentVersion]
ON [cmsDocument].[versionId] = [cmsContentVersion].[VersionId]
INNER JOIN [cmsContent]
ON [cmsContentVersion].[ContentId] = [cmsContent].[nodeId]
INNER JOIN [umbracoNode]
ON [cmsContent].[nodeId] = [umbracoNode].[id]
WHERE ([umbracoNode].[nodeObjectType] = 'c66ba18e-eaf3-4cff-8a22-41b16d66a972')
AND ([cmsDocument].[published] = 'False' AND [cmsDocument].[expireDate] <= '03/26/2013 15:37:06')
AND ([cmsDocument].[newest]='True')
ORDER BY [cmsContentVersion].[VersionDate] DESC
, [umbracoNode].[sortOrder]

/Paul S