Hi there,

We've recently upgraded our DNN installation (unfortunately I can't remember which version it was on) to DNN 5.1.4. We then proceeded to upgrade our Forum module to 4.5.3 as the old version of the module was throwing an error when you tried to do a search. 

Our Problem:
When we add a new Group to the Forum Module it works fine but when we try to add a forum in the Group it throws two exceptions. 

The first is:

Page Load Exception

AssemblyVersion: 5.1.4
PortalID: 0
PortalName: Client Name
UserID: 1
UserName: host
ActiveTabID: 306
ActiveTabName: Lanbou Forum
RawURL: /LanbouForum/tabid/306/ctl/ForumEdit/mid/1123/groupid/13/language/en-US/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://the domain/LanbouForum/tabid/306/ctl/ForumManage/mid/1123/language/en-US/Default.aspx
UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.0.19) Gecko/2010031422 Firefox/3.0.19 (.NET CLR 3.5.30729)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 91ea9b27-fb2d-4fee-9fe8-3467461b44b4
InnerException: Object reference not set to an instance of an object.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: DotNetNuke.Modules.Forum.Controls.ForumPermissionsGrid.SaveViewState
StackTrace:
Message: DotNetNuke.Services.Exceptions.PageLoadException: 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.Forum.Controls.ForumPermissionsGrid.SaveViewState()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Control.SaveViewStateRecursive()at System.Web.UI.Page.SaveAllState()at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)--- End of inner exception stack trace ---
Source:
Server Name: BLA

-------------------------------------------------------------------------------------
The second error is:

Module Load Exception

ModuleId: 1123
ModuleDefId: 105
FriendlyName:
ModuleControlSource: DesktopModules/Forum/Controls/ACP_ForumEdit.ascx
AssemblyVersion: 5.1.4
PortalID: 0
PortalName: Client Name
UserID: 1
UserName: host
ActiveTabID: 306
ActiveTabName: Lanbou Forum
RawURL: /LanbouForum/tabid/306/ctl/ForumEdit/mid/1123/groupid/13/language/en-US/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://domain name/LanbouForum/tabid/306/ctl/ForumManage/mid/1123/language/en-US/Default.aspx
UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.0.19) Gecko/2010031422 Firefox/3.0.19 (.NET CLR 3.5.30729)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 983790ba-795c-4c80-9eb8-82b3d1be5d3f
InnerException: Must specify valid information for parsing in the string.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Enum.Parse
StackTrace:
Message: DotNetNuke.Services.Exceptions.ModuleLoadException: Must specify valid information for parsing in the string. ---> System.ArgumentException: Must specify valid information for parsing in the string.at System.Enum.Parse(Type enumType, String value, Boolean ignoreCase)at DotNetNuke.Modules.Forum.ACP.ForumEdit.HandleForumBehavior()at DotNetNuke.Modules.Forum.ACP.ForumEdit.Page_Load(Object sender, EventArgs e)--- End of inner exception stack trace ---
Source:
Server Name: BLA

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We also use Apollo's Page Localization and MLHTML modules for DNN 5.1.4. 

Any ideas on what it could be? Your help will be greatly appreciated!

Regards,
Anina

hello,

I would ask this in the main DotNetNuke forums, in the forum core project section, thanks,