So, this is what happened...

 

I did some R&D with the API and I added a method in my XSLT Extension, just to test the Publish method

 

        public static string testPublish(string nodeName)

        {

            try

            {

                DocumentType dt = DocumentType.GetByAlias("textpage");

                User author = User.GetUser(0);

                Document doc = Document.MakeNew(nodeName, dt, author, 1049);

                doc.Publish(author);

                umbraco.library.UpdateDocumentCache(doc.Id);

            }

            catch (Exception e)

            {

 

                return "something went wrong with the node! Exeption thrown" + "<br/>" + e.Message.ToString();

            }

            return "Document Published!";

        }

The thing is that after I created some nodes that were working just fine (I could see them in my menu, etc) I went back to the backend and suddenly I could't publish any nodes. And I got this error

 

 

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

 

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

 

Source Error: 

 

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

 

Stack Trace: 

 

[NullReferenceException: Object reference not set to an instance of an object.]

   umbraco.content.ValidateSchema(String docTypeAlias, XmlDocument xmlDoc) +51

   umbraco.content.AppendDocumentXml(Int32 id, Int32 level, Int32 parentId, XmlNode docXml, XmlDocument xmlContentCopy) +120

   umbraco.content.PublishNodeDo(Document d, XmlDocument xmlContentCopy, Boolean updateSitemapProvider) +217

   umbraco.content.UpdateDocumentCache(Document d) +407

   umbraco.content.UpdateDocumentCache(Int32 pageId) +75

   umbraco.library.UpdateDocumentCache(Int32 DocumentId) +150

   umbraco.cms.presentation.editContent.Publish(Object sender, EventArgs e) +462

   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) +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

 

 

 

I edited the web.config to restart the application, I did the whole iisreset routine and still I couldn't publish. So I went to the umbracoLog to check things out. So there are my findings:

 

Entry 2992: Loading content from database...

 

Entry: 2993: NodeId: -1

 

Error Republishing: System.Xml.XmlException: '>' is an unexpected token. Expecting white space. Line 13, position 15.

   at System.Xml.XmlTextReaderImpl.Throw(Exception e)

   at System.Xml.XmlTextReaderImpl.DtdParserProxy.System.Xml.IDtdParserAdapter.Throw(Exception e)

   at System.Xml.DtdParser.Throw(Int32 curPos, String res, String arg)

   at System.Xml.DtdParser.GetToken(Boolean needWhiteSpace)

   at System.Xml.DtdParser.ParseElementDecl()

   at System.Xml.DtdParser.ParseSubset()

   at System.Xml.DtdParser.ParseInDocumentDtd(Boolean saveInternalSubset)

   at System.Xml.DtdParser.Parse(Boolean saveInternalSubset)

   at System.Xml.DtdParser.System.Xml.IDtdParser.ParseInternalDtd(IDtdParserAdapter adapter, Boolean saveInternalSubset)

   at System.Xml.XmlTextReaderImpl.ParseDtd()

   at System.Xml.XmlTextReaderImpl.ParseDoctypeDecl()

   at System.Xml.XmlTextReaderImpl.ParseDocumentContent()

   at System.Xml.XmlTextReaderImpl.Read()

   at System.Xml.XmlLoader.LoadNode(Boolean skipOverWhitespace)

   at System.Xml.XmlLoader.LoadDocSequence(XmlDocument parentDoc)

   at System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean preserveWhitespace)

   at System.Xml.XmlDocument.Load(XmlReader reader)

   at System.Xml.XmlDocument.LoadXml(String xml)

   at umbraco.content.InitContentDocumentBase(XmlDocument xmlDoc)

   at umbraco.content.LoadContentFromDatabase()

Xml wasn't saved: System.Xml.XmlException: Invalid XML document. The document does not have a root element.

   at System.Xml.XmlDocument.Save(String filename)

   at umbraco.content.PersistXmlToFile(XmlDocument xmlDoc)

When I try to open the homepage node (ID 1049), I can see the contents but I can't publish it. I get this log entry at the node -1 after the publish of the node 1049

 

At /umbraco/editContent.aspx?id=1049 (Referred by: http://localhost/umbraco/editContent.aspx?id=1049): System.NullReferenceException: Object reference not set to an instance of an object.

   at umbraco.content.ValidateSchema(String docTypeAlias, XmlDocument xmlDoc)

   at umbraco.content.AppendDocumentXml(Int32 id, Int32 level, Int32 parentId, XmlNode docXml, XmlDocument xmlContentCopy)

   at umbraco.content.PublishNodeDo(Document d, XmlDocument xmlContentCopy, Boolean updateSitemapProvider)

   at umbraco.content.UpdateDocumentCache(Document d)

   at umbraco.content.UpdateDocumentCache(Int32 pageId)

   at umbraco.library.UpdateDocumentCache(Int32 DocumentId)

   at umbraco.cms.presentation.editContent.Publish(Object sender, EventArgs e)

   at System.EventHandler.Invoke(Object sender, EventArgs e)

   at umbraco.controls.ContentControl.savePublish(Object Sender, ImageClickEventArgs e)

   at System.Web.UI.WebControls.ImageButton.OnClick(ImageClickEventArgs e)

   at System.Web.UI.WebControls.ImageButton.RaisePostBackEvent(String eventArgument)

   at System.Web.UI.WebControls.ImageButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)

   at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)

   at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)

   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Please help me to understand what happened...

 

Thank you,

Bill