I had a DNN instance and I needed to split a site out seperately, it is the only done using DMX. Do I copied the entire instance over and removed all the portals except for the one using DMS however since then I have ran into some errors. This is the first one, whenever I go to Admin, Main Options I get Object reference not set to an instance of an object in red letters and the messages below show up in the Event Log.

Also, when I go to Admin, Storage Settings, the Storage Provider list is blank, I have white space turned off. And when I try to view a file it tells me Resource cannot be found. Please help! Thanks, Heather

AssemblyVersion: 5.6.3
PortalID: 3
PortalName: xxxx
UserID: 1
UserName: host
ActiveTabID: 815
ActiveTabName: Documents
RawURL: /Default.aspx?tabid=815&ctl=MainOptions&mid=1785
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer:
UserAgent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; InfoPath.3; Zune 4.7; .NET4.0C; MS-RTC LM 8)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 3eedc5c5-a226-4f82-8369-ec003b13f6bf
InnerException: Object reference not set to an instance of an object.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: Bring2mind.DNN.Modules.DMX.Security.Controls.SimplePermissionsGrid.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 Bring2mind.DNN.Modules.DMX.Security.Controls.SimplePermissionsGrid.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.Page.SaveAllState() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---
Source:


ModuleId: 1785
ModuleDefId: 145
FriendlyName:
ModuleControlSource: DesktopModules/Bring2mind/DMX/Admin/MainOptions.ascx
AssemblyVersion: 5.6.3
PortalID: 3
PortalName: xxxx
UserID: 1
UserName: host
ActiveTabID: 815
ActiveTabName: Documents
RawURL: /Default.aspx?tabid=815&ctl=MainOptions&mid=1785
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer:
UserAgent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; InfoPath.3; Zune 4.7; .NET4.0C; MS-RTC LM 8)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 81ebb646-ba00-47a7-a5ad-275f983f8f8f
InnerException: Object reference not set to an instance of an object.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: Bring2mind.DNN.Modules.DMX.Common.DNNModuleController.GetModuleInstancesByDefinition
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 Bring2mind.DNN.Modules.DMX.Common.DNNModuleController.GetModuleInstancesByDefinition(Int32 PortalId, String ModuleName) at Bring2mind.DNN.Modules.DMX.Controls.Admin.MainOptions.ᜁ(Object A_0, EventArgs A_1) --- End of inner exception stack trace ---
Source:

Handled by email. Customer had DMX 4 version on a DNN 5.6 site which inevitably broke.

Hi Peter,
I am having the exact same issue. I have DMX 5.2.7 running on DNN 5.0.6. Recently we moved the site from IIS6 to IIS7 on Windows 2008 server and since then I have started seeing this issue. I am unable to get into Admin->Main Options. There are no errors in Log Viewer for DNN or in the server's EventLog. A lot of users are complaining that when they upload a document they get the same error.
"A critical error has occurred.
Object reference not set to an instance of an object."

Can you please help ASAP? This is impacting Production.

Thanks,
Chhavi

Hi Chhavi,

You'll need to upgrade.

Peter