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Forums Using DNN Platform Upgrading DNN Platform

Upgrade to ver 10.00 error with html form in child portals

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Guido
New Around Here Send Private Message
Posts: 3
New Around Here
4/13/2025 3:47 AM

After updating DNN from version 9.13.08 to version 10.00 , the HTML forms of portal 0 work , while those of the child portals return a sql error “The sequence contains more than one element”

thanks for your help

Guido
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Posts: 3
New Around Here
4/16/2025 11:48 AM

these are the errors

Errore: Home Banner non è attualmente disponibile. DotNetNuke.Services.Exceptions.ModuleLoadException: Sequence contains more than one matching element ---> System.InvalidOperationException: Sequence contains more than one matching element at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable1 source, Func2 predicate) at DotNetNuke.Entities.Tabs.TabWorkflowSettings.GetDefaultTabWorkflowId(Int32 portalId) at DotNetNuke.Modules.Html.HtmlTextController.GetWorkflow(Int32 moduleId, Int32 tabId, Int32 portalId) at DotNetNuke.Modules.Html.HtmlModule.OnInit(EventArgs e) --- End of inner exception stack trace ---

Errore: Home Banner non è attualmente disponibile. 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.Html.HtmlTextController.GetTopHtmlText(Int32 moduleId, Boolean isPublished, Int32 workflowId) at DotNetNuke.Modules.Html.HtmlModule.OnLoad(EventArgs e) --- End of inner exception stack trace ---

Guido
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Posts: 3
New Around Here
4/16/2025 11:49 AM
these are the errors
Errore: Home Banner non è attualmente disponibile. DotNetNuke.Services.Exceptions.ModuleLoadException: Sequence contains more than one matching element ---> System.InvalidOperationException: Sequence contains more than one matching element at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable1 source, Func2 predicate) at DotNetNuke.Entities.Tabs.TabWorkflowSettings.GetDefaultTabWorkflowId(Int32 portalId) at DotNetNuke.Modules.Html.HtmlTextController.GetWorkflow(Int32 moduleId, Int32 tabId, Int32 portalId) at DotNetNuke.Modules.Html.HtmlModule.OnInit(EventArgs e) --- End of inner exception stack trace ---

Errore: Home Banner non è attualmente disponibile. 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.Html.HtmlTextController.GetTopHtmlText(Int32 moduleId, Boolean isPublished, Int32 workflowId) at DotNetNuke.Modules.Html.HtmlModule.OnLoad(EventArgs e) --- End of inner exception stack trace ---
David Lee
Growing Member Send Private Message
Posts: 126
Growing Member
4/16/2025 8:31 PM
Does your installation have multiple languages? Or not en-US?

I have found some issues on an upgrade with the pages not displaying in the personabar menu and a an error on the Html/Text module. I decided to restore the DNN9 version. I tried to recreate the problem in a fresh DNN10 and I had no errors. I am wondering if the localization has an issue on upgrade.
Marco Alvarado
Veteran Member Send Private Message
Posts: 267
Veteran Member
4/20/2025 6:00 PM

Guido, is your Home Banner a third partuy extension? If it is, make sure you follow up with the vendor in order to have a compatible version for your third party module with DNN 10 before upgrading to the latest version of DNN.

Guido
New Around Here Send Private Message
Posts: 3
New Around Here
4/21/2025 2:20 AM
Hi Marco , it is not a third party extension, after upgrading the main portal to version 10.00 I created an empty child portal with only the home page created by DNN .
From the error type we get that: since new tables were created in vers. 10, of new tables , the SQL call expects to find only one record with the set read key , but returns more than one and thus returns an unhandled error .
So I think it is a BUG in the new version that has already been reported and that the developers are already working on .

thanks again
David Lee
Growing Member Send Private Message
Posts: 126
Growing Member
4/21/2025 8:51 AM
Yes, I have no proof and have not had time to look into it, but I think there is a bug when upgrading child portals.

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