i just un- and reinstalled it because it stopped working for me... but now it's working again!

Now its working. I used Fiddler to check what's causing the 404. Access on "<span lang="DE">/MultipleFileUploadHandler.axd" failed. Checked web.config, changed on thing, tried again. It was working. Changed it back... still working.</span>

If you apply the fix and still get errors, you may need to add or increase your maxrequestlength setting in the web.config

What fix?

It's at http://noerd.dk/umbraco-ressources/Multiple-File-Upload/noerd.Umb.DataTypes.multipleFileUpload_source_1.1_quickfix.zip

(posted on http://forum.umbraco.org/yaf_postst8958_Problems-with-N246rds-fine-Multiple-FIle-Upload-v11.aspx#43783)

I have just upgraded a Umbraco from 3.0.6 to 4.0.2.1 and now I get the same There has been an I/O Error: Error #2038 but followed by a There has been an HTTP Error: status code 500

I have installed the latest fix and it works on a clean 4.0.2.1 installation but not in my upgraded version

The question is has something went wrong in the upgrade process. I can't figure it out.

If I check the umbracolog I get this message:

Multiple file upload: System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.     at System.ThrowHelper.ThrowKeyNotFoundException()     at System.Collections.Generic.Dictionary`2.get_Item(TKey key)     at umbraco.cms.businesslogic.datatype.controls.Factory.GetNewObject(Guid DataEditorId)     at umbraco.cms.businesslogic.datatype.DataTypeDefinition.get_DataType()     at umbraco.cms.businesslogic.datatype.DataTypeDefinition.GetByDataTypeId(Guid DataTypeId)     at noerd.Umb.DataTypes.multipleFileUpload.DefaultImageMediaFactory.GenerateAdditionalThumbnails(Image image, Int32 fileWidth, Int32 fileHeight, String destFilePath)     at noerd.Umb.DataTypes.multipleFileUpload.DefaultImageMediaFactory.CreateMedia(IconI parent, HttpPostedFile uploadFile)     at noerd.Umb.DataTypes.multipleFileUpload.MultipleFileUpload.HandleUpload(HttpContext context, Int32 nodeId)     at noerd.Umb.DataTypes.multipleFileUpload.MultipleFileUploadHandler.ProcessRequest(HttpContext context)

and this

At /MultipleFileUploadHandler.axd?nodeId=5342&contextId=a28dd93a-a976-40dd-b180-a373a7926895 (Referred by: ):

Rememeber to increase the maxrequestlength in web.config as Dan mentions:

<httpRuntime maxRequestLength="10240" /> under System.web in web config.

Also try checking the following:

Settings > Media types > Image > Gen Properties > Type

This property is wrongly aliased as umbracoExtensio
(THIS SHOULD BE: umbracoExtension - correct this and viola)

Also same for Settings > Media types > File > Gen Properties > Type

(found at the old forum - and used with great succes!)

best regards,
Brian

Also, increasing executionTimeout has helped me in the past.

<httpRuntime maxRequestLength="10240" executionTimeout="3600" />

I believe its in seconds, so perhaps an hour is a bit long...

Dan

I have allready tried all these things. Doesn't work.

I would like to now what causes the error The given key was not present in the dictionary ... because I think it has something to do whith this.

I'm getting the 404 error too.

But what the........?! The file "MultipleFileUploadHandler.axd" does not exist in my umbraco folder...?!

Shouldn't that file exist?

Aight, using Classic mode instead of pipeline in the App Pool solved this problem...

But when using Classic mode, you can't use the UseDirectoryAsUrl mode...

I talked to Mikkel Keller and he showed me I was placing the handler in the wrong section; <system.web><httpHandlers> instead of <system.webServer><handlers>

@Søren: I've had a quick look around, and from what I can gather the dictionary error is occurring because the Upload datatype is not being found.

The MultipleUpload control is trying to look up the prevalues for the default Umbraco Upload control at the point the exception occurs. It passes the GUID of the Upload control (umbraco.editorControls.uploadfield.DataTypeUploadField, "5032a6e6-69e3-491d-bb28-cd31cd11086c"). This is registered automatically by Umbraco as it searches across the code base. The exception is thrown when this GUID is not found in the internal Umbraco datatype registry.

This is where it gets murky for me, as I haven't upgraded from v3 before.

• does the standard Upload control in the Media section work for you? Is it present?
• is the Upload datatype present in the developer section?
• are you certain that all the DLLs for the site have been upgraded correctly? (Though I can't see how anything would work if this was the case)

Well as someone else descriped in the old forum - It suddenly works.

I didn't change a thing - strange but true.

/cheers.

@kipusoep

I got it working (MultipleFileUpload and umbracoUseDirectoryUrls=true together) in Windows Vista and IIS7 in Classic Mode, setting up the "Wildcard script mapping and IIS 7 integrated pipeline" as described here: http://learn.iis.net/page.aspx/508/wildcard-script-mapping-and-iis-7-integrated-pipeline/

With the MultipleFileUpload I just had to install the package "noerd.Umb.MultipleFileUpload_1.1.umb" and then apply the fix "noerd.Umb.DataTypes.multipleFileUpload_source_1.1_quickfix.zip".

Now I have all things working!

Next step, I'll test in Windows Server 2008 with IIS7 and Windows Server 2003 with IIS6.

cheers!

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