Hi there,

We are running Document Exchange 5.2.2 and have recently upgraded the DNN portal to 6.2.2

The Document Exchange module works fine until we try and view/download a file.

We get this error message when we try:

Server Error in '/' Application.
--------------------------------------------------------------------------------

The resource cannot be found.
Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly.

Requested URL: /DesktopModules/Bring2mind/DMX/Download.aspx


--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:2.0.50727.3634; ASP.NET Version:2.0.50727.3634



This is what we see in the url

http:///DesktopModules/Bring2mind/DMX/Download.aspx?TabID=329&Command=Core_Download&EntryId=ent903&Method=attachment&PortalId=1&TabId=329

Please help.

Thanks

Yener

Sorry I should mention, I checked the file location and Download.aspx is there.

Thanks

It looks like there is an error in the configuration of IIS in that it doesn't allow direct requests to this ASPX. Alternatively it is an issue of url rewriting. Are you using a 3rd party url rewriter? Maybe ask them how come a request to download.aspx fails?

Peter

Hi Peter,

Thanks for the reply.

There are no 3rd party modules used for URL rewriting installed.

It's very strange, it's like the file doesn't exist.

I can go to /desktopmodules/bring2mind/dmx/dmxrss.aspx without any problem but not download.aspx

So it's not an aspx restriction of any kind.

What can I try next?

Thanks

Carefully check any 3rd party vendors that may interfere with the path. And check the web.config. Maybe someone injected something into the handlers. Other than that I'm not sure what you could try.
Just one thing to make sure: this happens upon every download, right? Not just a few downloads? And you're sure the DMX content is still where it was saved (by default under portals/[id]/DMX/[year]/[month])?

Peter

Hi Peter,

There is no 3rd party vendors and the web.config looks ok. Maybe you can tell me what entries to look for in there are what they should be so I can double check.

There are no other handlers and like I said above, the other DMX aspx files work fine.

It happens for all files - even if I just visit /Download.aspx without and arguements it gives me the same error.

I have checked the directories you mentioned and there are files in there - they all end in .resources

Is that right?

Thanks Peter

Hi Yener,

What you have to look for is any path that could match download.aspx. The next step is using failed request tracing. This is laborious, but it gets to the source of the deviation if it is a routing error.

Peter

Hi Peter,

I did a quick search of failed request tracing and I don't think it's available on IIS6.

Is there something else I can try?

Thanks again

regards

Yener

Hang on ... in your first post you said the url was http:///desktopmodules/etc. Is this still the case? This means the http alias of the site is missing. Can you just confirm under Main Options the default http alias of the site and restart the application?

Peter

Hi Peter,

The url is fine. I think I may have copied and pasted it wrong.

But I did try and get into the Main Options and I got the following error message

'A critical error has occurred. Object reference not set to an instance of an object. '

When I checked the Event Viewer the following error was logged.

Could this be at all related?

Thanks

--

AssemblyVersion: 6.2.2

PortalID: 1

PortalName:

UserID: 1

UserName: Admin

ActiveTabID: 329

ActiveTabName: Document Library

RawURL: /ToolsResources/DocumentLibrary/tabid/329/Default.aspx?ctl=Attributes&mid=912

AbsoluteURL: /Default.aspx

AbsoluteURLReferrer:

UserAgent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider

ExceptionGUID: 147a7f1b-62c7-4f8d-bbcc-7209a56adab4

InnerException: Object reference not set to an instance of an object.

FileName:

FileLineNumber: 0

FileColumnNumber: 0

Method: Bring2mind.DNN.Modules.DMX.Controls.WebControls.ShortTextEdit.CreateChildControls

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.Controls.WebControls.ShortTextEdit.CreateChildControls() at System.Web.UI.Control.EnsureChildControls() at Bring2mind.DNN.Modules.DMX.Controls.WebControls.ShortTextEdit.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.Page.SaveAllState() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---

Source:

Server Name:

I'm not sure to be honest. It looks like there are multiple issues with the installation. The best way forward is to contact me by email with a host-level login I can use to investigate.

Peter

Hi Peter,

We got desperate and decide to try upgrading to DMX 6 which resolved the issue.

Thanks for trying so hard to help us