I am basically getting the exact same error.

I upgraded from 5.04.04 to 5.06.00.  I used the upgrade package.  The upgrade completed with no errors. 

I am running one instance of DotNetNuke that houses four parent portals.  Everything seems to be working fine with the portals, exept that I am getting this error on three of them.

After upgrade, I enabled content localization at the hosting level.  For one of the sites (we'll call it Site A), I went to Languages and added another language (Japanese).  I then enabled localized content.  I then spent a day or so testing that site and my ability to edit content in both English and Japanese.  Absolutely no problems.

Today, I went to my other sites to give them a test, and ran into this error any time I try to edit an HTML module on certain pages.  The Japanese language is disabled on all three of these sites.  I have not done any changes at all to those sites since the upgrade.

So far, I have not found anything different between the HTML Modules that can be edited on those three sites, and the ones that cannot.  Any ideas?

ModuleId: 1010
ModuleDefId: 116
FriendlyName:
ModuleControlSource: DesktopModules/HTML/EditHTML.ascx
AssemblyVersion: 5.6.0
PortalID: 5
PortalName: Home | CUI Inc Electronic Components Supplier for OEM Manufacturers
UserID: 1
UserName: tking
ActiveTabID: 373
ActiveTabName: V-Infinity Power
RawURL: /Products/V-Infinity-Power/ctl/Edit/mid/1010
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://cstaging.cui.com/Products/V-Infinity-Power
UserAgent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; InfoPath.2; .NET4.0C; .NET4.0E)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: ccdfb408-69a5-4bb7-a025-b4130b5e8d14
InnerException: Object reference not set to an instance of an object.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: DotNetNuke.Modules.HtmlPro.EditHtml.grdVersions_ItemDataBound
StackTrace:
Message: DotNetNuke.Services.Exceptions.ModuleLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Modules.HtmlPro.EditHtml.grdVersions_ItemDataBound(Object sender, GridItemEventArgs e) at Telerik.Web.UI.GridItem.SetupItem(Boolean dataBind, Object dataItem, GridColumn[] columns, ControlCollection rows) at Telerik.Web.UI.GridItemBuilder.InitializeItem(Int32 dataSourceIndex, String& nextItemHierarchicalIndex, Boolean& itemIsInEditMode) at Telerik.Web.UI.GridItemBuilder.CreateItems(GridGroupingContext group) at Telerik.Web.UI.GridTableView.CreateControlHierarchy(Boolean useDataSource) at Telerik.Web.UI.GridTableView.CreateChildControls(IEnumerable dataSource, Boolean useDataSource) at System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding(IEnumerable data) at System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data) at Telerik.Web.UI.GridTableView.PerformSelect() at Telerik.Web.UI.GridTableView.DataBind() at DotNetNuke.Modules.HtmlPro.EditHtml.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace ---

 

that's always a problem with upgrades, if data does not adhere to the integrity assumptions. Did you manually delete users in a DNN 5 installation or prior to the upgrade?

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Cheers from Germany,
Sebastian Leupold

   

Speed up your DNN Websites with TurboDNN

Any help on this would be appreciated. The site I upgraded with this issue was a small site but I have a site with upwards of 25 users and nearly 2,000 pages that if this happened from upgrade there it would be a catastrophe of folkloric proportions. thanks, Will