Hi Mithun

What version of Umbraco do you experience this on? And have you made any custom stuff using the API like hooking in to a Save event or something? And are you using MNTP, which is perhaps having a startnode ID that does no longer exist?

I think you should check to see if there is a weird character in on of your document type aliases. In my experience this happens when for some weird reason an alias somehow contains _ or - if I remember correctly. So try looking for this and see if it helps to change the alias.

Otherwise please ellaborate a bit more :)

/Jan

Hi Jan,

Thanks for reply.my umbraco version is 4.7.1.1 .The same method and document type are used in local and staging and its working fine.The issue happen in our live site.We take backup of our live site and restored in our local then we can publish it and working fine.But our problem is  its an  ecommerce site we cannot backup and restore it in Live.

Please see the below error which shows on stack trace. 

[ArgumentNullException: Value cannot be null.
Parameter name: attribute]
   System.Xml.Linq.XAttribute.op_Explicit(XAttribute attribute) +90854
   UmbracoExamine.UmbracoContentIndexer.ReIndexNode(XElement node, String type) +107
   Examine.ExamineManager._ReIndexNode(XElement node, String type, IEnumerable`1 providers) +81
   UmbracoExamine.UmbracoEventManager.content_AfterUpdateDocumentCache(Document sender, DocumentCacheEventArgs e) +172
   umbraco.DocumentCacheEventHandler.Invoke(Document sender, DocumentCacheEventArgs e) +0
   umbraco.content.FireAfterUpdateDocumentCache(Document sender, DocumentCacheEventArgs e) +26
   umbraco.content.UpdateDocumentCache(Document d) +749
   umbraco.content.UpdateDocumentCache(Int32 pageId) +52
   umbraco.library.UpdateDocumentCache(Int32 DocumentId) +106
   umbraco.cms.presentation.editContent.Publish(Object sender, EventArgs e) +381
   System.EventHandler.Invoke(Object sender, EventArgs e) +0
   umbraco.controls.ContentControl.savePublish(Object Sender, ImageClickEventArgs e) +46
   System.Web.UI.WebControls.ImageButton.OnClick(ImageClickEventArgs e) +115
   System.Web.UI.WebControls.ImageButton.RaisePostBackEvent(String eventArgument) +120
   System.Web.UI.WebControls.ImageButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5563

Hi Jan,

Creating document type and property are added through Manually,No custome methods or API is using.

regards

mithun

Hi Mithun

Ok, but try checking the aliases of all your document types and see if something looks weird in one or more of them. I've seen the # issue when the aliases somehow have been messed up for some weird reason.

/Jan

Hi jan,

The Same udt is used in staging site it is working fine.Is there any node limit for umbraco ,currently the error creating node has id 16948

copying the database and App-Data from live site to staging will not recreate the issue.

regards

mithun

Hi Umbraco team,

Please help to solve this issue,Any document type create manually and node is publish it shows error 

"Value cannot be null. Parameter name: attribute"

eg:-create document type "testdocument " manually as in setting section

and create node in content section  and publish  it shows error.

regards

mithun

Hi ,

Find solution ,just replace the App_Data contain umbraco.Config file  with old one ,its work fine .

regards

mithun 

On RC6 I am receiving the same error on publish:

"Value cannot be null. Parameter name: attribute"

Have a look here: http://our.umbraco.org/forum/using/ui-questions/37750-4113-Publish-exception-Value-cannot-be-null

Looks like there is a new 6.0 stable release today.. I'll upgrade and hopefully fix the problem.

Hi 

Again causing  this issue.This time  umbraco.config replaces doesn't solving the issue.guys please help

regards

mithun

Hi mithun,

are you still on 4.7.1.1 or did you upgrade?

Matthias

This is a bug, has been reported and solved here:

http://issues.umbraco.org/issue/U4-1491

The bug means that when you move/delete some nodes, the paths arent updated correctly and you get this error. I actually had the same problem and shannon solved the problem in the core for version 6.0 and 4.11.4 (I think).

He published a package that fixes these issues here; http://our.umbraco.org/projects/developer-tools/path-fixup

You should read through the issue-tracker, it explains it fully.

I think installing the above package and running the pathfix in the backend (it adds a tab to the dashboard) should fix your problem :)

Cheers,

Niels

Hi ,

Can i install this package on 4.7.1

There is lots of other packages running in my site ,Is upgrading to v6.0 may cause other packages not running ?

regards

mithun

Hi Guys

Please help ...

we are in critical situation...

Advance thanks and regards

mithun

I see we have 2 topics now ;)

http://our.umbraco.org/forum/ourumb-dev-forum/bugs/38574-Value-cannot-be-null-Parameter-name-attribute-

I still think you're dealing with the described bug.

If I were you I'd try upgrading.

But you should do this on a copy of your site. E.g, copy your site and database, set it up on another site or locally. Then try the upgrades to at least 4.11.4

Possibly to v. 6 if you'd like, each time testing thorougly if all the packages work as expected. Also read up on breaking changes in each release's release notes. It should help you see if anything breaks. If something breaks, then check for a never and compatible version of the package that breaks and try an update.

I recently updated a few sites form 4.7 to 6.0 (taking one version at the time), and I had no problems. But the sites were small and only a few packages.

Hope you solve this!

/Niels

Hi Niels,

Thanks ,we are trying to upgrade

One think  i found in umbraco is umbraco.config is not updating when it has 20k nodes.we deleted 6k nodes it is working properly.

Thanks & Regards

mithun

20 K nodes... wow.

Hopefully you will be succesfull in your upgrades.

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