Hi, everyone.

I have done successfully upgrade of my site from 4.0.2.1 to 4.5.2. After upgrading, noNodes.aspx note is shown on every page of my site and there are no link for the documents (only '#'). App_Pool was recycled  twice, dialogs/republish.aspx?xml=true was done also. But nothing changed.

The schema in database was updated:

<homepage id="1067" parentID="-1" level="1" writerID="0" creatorID="0" nodeType="1044" template="1045" sortOrder="0" createDate="2009-07-09T14:48:12" updateDate="2010-11-29T10:04:31" nodeName="index" urlName="index" writerName="Administrator" creatorName="Administrator" path="-1,1067" isDoc=""><articleTitle>Some Text</articleTitle><isPublishedConf>1</isPublishedConf><speakerPhoto></speakerPhoto><speakerName>Some Text</speakerName><littleMoreAboutSpeaker><![CDATA[Some Text]]></littleMoreAboutSpeaker><linkToConfPage>Some_Text</linkToConfPage><advPicture></advPicture><linkToGo>link</linkToGo><isPublishedAdvHomepage>1</isPublishedAdvHomepage><isShownOnNewsPages>1</isShownOnNewsPages><isShownAdvOnNewsPages>1</isShownAdvOnNewsPages><advCode><![CDATA[<EMBED height=230 type=application/x-shockwave-flash width=170 src=http://mysite/media/121242/variant3_300_250.swf quality="best" wmode="opaque" play="true" loop="true" menu="false" allowscriptaccess="always">]]></advCode><isAdvCodeShown>0</isAdvCodeShown><newsByCategories><![CDATA[Some Text]]></newsByCategories></homepage>

When I'm trying to publish this page, i get the error:

NullReferenceException

umbraco.content.ValidateSchema(String docTypeAlias, XmlDocument xmlDoc) +51
   umbraco.content.AppendDocumentXml(Int32 id, Int32 level, Int32 parentId, XmlNode docXml, XmlDocument xmlContentCopy) +117
   umbraco.content.PublishNodeDo(Document d, XmlDocument xmlContentCopy, Boolean updateSitemapProvider) +218
   umbraco.content.UpdateDocumentCache(Document d) +395
   umbraco.content.UpdateDocumentCache(Int32 pageId) +72
   umbraco.library.UpdateDocumentCache(Int32 DocumentId) +147
   umbraco.cms.presentation.editContent.Publish(Object sender, EventArgs e) +460
   System.EventHandler.Invoke(Object sender, EventArgs e) +0
   umbraco.controls.ContentControl.savePublish(Object Sender, ImageClickEventArgs e) +96
   System.Web.UI.WebControls.ImageButton.OnClick(ImageClickEventArgs e) +108
   System.Web.UI.WebControls.ImageButton.RaisePostBackEvent(String eventArgument) +118
   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

Also umbraco.config was dissapeared and 'republish entire site' doesn't help.

I have the DateFolder package installed. On package page there are no infomation about it's compatibilty with 4.5 (legacy or new schema).

When I turned on legacy mode in umbracoSettings.config and recycled the app pool, all works fine.

In what may be a bug?