keep getting null reference exception when publishign a node

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Simon 24 posts 127 karma points

Dec 21, 2010 @ 12:59

API Questions

Not sure if this is the correct forum.

I keep getting the following error when i try to publish a node:

[NullReferenceException: Object reference not set to an instance of an object.]
   UmbracoExamine.UmbracoEventManager.content_AfterUpdateDocumentCache(Document sender, DocumentCacheEventArgs e) +77
   umbraco.DocumentCacheEventHandler.Invoke(Document sender, DocumentCacheEventArgs e) +0
   umbraco.content.FireAfterUpdateDocumentCache(Document sender, DocumentCacheEventArgs e) +135
   umbraco.content.UpdateDocumentCache(Document d) +1679
   umbraco.content.UpdateDocumentCache(Int32 pageId) +119
   umbraco.library.UpdateDocumentCache(Int32 DocumentId) +195
   umbraco.cms.presentation.editContent.Publish(Object sender, EventArgs e) +784
   System.EventHandler.Invoke(Object sender, EventArgs e) +0
   umbraco.controls.ContentControl.savePublish(Object Sender, ImageClickEventArgs e) +164
   System.Web.UI.WebControls.ImageButton.OnClick(ImageClickEventArgs e) +133
   System.Web.UI.WebControls.ImageButton.RaisePostBackEvent(String eventArgument) +164
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3690

Anyone know why this is happening?

I'm using the .net 4.0 version and the only modification i've made is to use my own membership provider. Can't see how that would make any difference though.

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Jan Skovgaard 11280 posts 23678 karma points MVP 10x admin c-trib

Dec 21, 2010 @ 21:41

0

Hi Simon

I'm not sure but I think this could maybe have something to do with permissions.

What permissions do you have on Network service and iusr? And is the app pool running integrated mode?

/Jan

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Simon 24 posts 127 karma points

Dec 23, 2010 @ 09:39

0

Weird, I solved it somehow. Seemed to be to do with trying to use Node properties which were null.... I think. Or it was because the name of the properties themselves were causing problems.

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tentonipete 78 posts 223 karma points

May 16, 2011 @ 16:11

1

This problem is not to do with permissions, it's to do with some secret reserved alias names. I've had the same problem when trying to use aliases "node" and "rootNode". Easily rectified by choosing something different, but I can't find it documented anywhere and there's no validation when selecting an alias to say that particular names are illegal.

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