I have successfully imported a folder with over 400 files in a number of subfolders. I then started a second import and it failed after about 120 files. The regular page with the file status messages displayed and then this error showed at the end of the page:

[HttpException (0x80004005): Cannot redirect after HTTP headers have been sent.]
   System.Web.HttpResponse.Redirect(String url, Boolean endResponse) +3296352
   DotNetNuke.Services.Exceptions.Exceptions.ProcessPageLoadException(Exception exc, String URL) +328
   DotNetNuke.Framework.PageBase.Page_Error(Object Source, EventArgs e) +483
   System.Web.UI.TemplateControl.OnError(EventArgs e) +2085508
   System.Web.UI.Page.HandleError(Exception e) +71
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +7341
   System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +213
   System.Web.UI.Page.ProcessRequest() +86
   System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +18
   System.Web.UI.Page.ProcessRequest(HttpContext context) +49
   ASP.desktopmodules_bring2mind_dmx_admin_importexecute_aspx.ProcessRequest(HttpContext context) +4
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +358
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64

The URL of the page is:

/DesktopModules/Bring2mind/DMX/Admin/ImportExecute.aspx?PortalId=1&TabId=74&ModuleId=399

Sean

I figured this one out - there was a file in the folders I was importing named ~WRL2324.tmp, I guess DMX doesn't handle the tilde in the file name. I removed that file and then the import worked.

Sean

Peter/Nolan,

I was having the same problem and I SOLVED it by adding the line below in the excluded paths of the compression settings of DNN.

desktopModules/Bring2mind/DMX/Admin/ImportExecute.aspx

I am using DNN 04.04.01 and DMX 3.05.05.

Aside form the error Nolan mentioned above I also site's log viewer shows this also

----
Method: System.Web.HttpResponse.AppendHeader
StackTrace:
Message: DotNetNuke.Services.Exceptions.PageLoadException: Server cannot append header after HTTP headers have been sent. ---> System.Web.HttpException: Server cannot append header after HTTP headers have been sent. at System.Web.HttpResponse.AppendHeader(String name, String value) at DotNetNuke.HttpModules.Compression.CompressingFilter.WriteHeaders() at DotNetNuke.HttpModules.Compression.DeflateFilter.Write(Byte[] buffer, Int32 offset, Int32 count) at System.Web.HttpWriter.Filter(Boolean finalFiltering) at System.Web.HttpResponse.Flush(Boolean finalFlush) at System.Web.HttpResponse.Flush() at Bring2mind.DNN.Modules.DMX.Controls.Admin.ImportExecute.WriteFeedback(HttpResponse response, Int32 indent, String message, Boolean showtime) at Bring2mind.DNN.Modules.DMX.Controls.Admin.ImportExecute.Page_Load(Object sender, EventArgs e) at System.Web.UI.Control.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---
----

Thanks Ryan,

Note your error is a compression error and not a DMX error.

Peter

Peter,

I'm having big trouble in importing a complete directory into DMX. Whatever files are contained in the directory, I always get the following error...

Any suggestion?

Importing

00: - Retrieving Import Settings
00: -  PortalId:  Success
00: -  TabId:  Success
00: -  ModuleId:  Success
00: -  Directory to import:  Success
00: -  Collection to import to:  Success
00:00:00.015 - Importing to Documents

Server Error in '/' Application.

---

Cannot redirect after HTTP headers have been sent.

Peter,

I had to import again last week and had the same problem with the same named file (it's a temporary MS Word file). In case it matters, the file was in a subfolder of a folder in the root and the subfolder name has spaces in it. So my file is something like

rootfolder\sub folder\~WRL2324.tmp

Is the tilde perhaps being seen as the HttpRuntime.AppDomainAppVirtualPath shortcut?

 I'm experiencing the same error with version 05.00.05.  I was able to work around it by giving read access rights to the Network Service on all subfolders, but it consistently gave the error if there was a subfolder that was not accessible to Network Service.  For example:

Folder1 contains Folder2.  Network service has read access to Folder1 but does not have any access to Folder2.  The error occurs when the import reaches Folder2.