Hi,

I'm trying to restrict posting comments on blog for umbraco by using xslt to check if the user is logged in or not. Inside the xslt if condition i inserted the umbraco macro for posting comments on the blog. I received an error that says.

Error occured
System.Xml.XmlException: 'umbraco' is an undeclared namespace. Line 24, position 4. 
at System.Xml.XmlTextReaderImpl.Throw(Exception e) 
at System.Xml.XmlTextReaderImpl.Throw(String res, String arg, Int32 lineNo, Int32 linePos) 
at System.Xml.XmlTextReaderImpl.LookupNamespace(NodeData node) 
at System.Xml.XmlTextReaderImpl.ElementNamespaceLookup() 
at System.Xml.XmlTextReaderImpl.ParseAttributes() 
at System.Xml.XmlTextReaderImpl.ParseElement() 
at System.Xml.XmlTextReaderImpl.ParseElementContent() 
at System.Xml.XmlTextReaderImpl.Read() 
at System.Xml.Xsl.Xslt.XsltInput.ReadNextSiblingHelper() 
at System.Xml.Xsl.Xslt.XsltInput.ReadNextSibling() 
at System.Xml.Xsl.Xslt.XsltInput.MoveToNextSibling() 
at System.Xml.Xsl.Xslt.XsltLoader.LoadInstructions(List`1 content, InstructionFlags flags) 
at System.Xml.Xsl.Xslt.XsltLoader.XslIf() 
at System.Xml.Xsl.Xslt.XsltLoader.XslChoose() 
at System.Xml.Xsl.Xslt.XsltLoader.LoadInstructions(List`1 content, InstructionFlags flags) 
at System.Xml.Xsl.Xslt.XsltLoader.LoadTemplate(NsDecl stylesheetNsList) 
at System.Xml.Xsl.Xslt.XsltLoader.LoadRealStylesheet() 
at System.Xml.Xsl.Xslt.XsltLoader.LoadDocument() 
at System.Xml.Xsl.Xslt.XsltLoader.LoadStylesheet(XmlReader reader, Boolean include)

Here is my xslt file. 

 
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xsl:stylesheet [ <!ENTITY nbsp "&#x00A0;"> ]>
<xsl:stylesheet 
 version="1.0" 
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
 xmlns:msxml="urn:schemas-microsoft-com:xslt"
 xmlns:umbraco.library="urn:umbraco.library" xmlns:Exslt.ExsltCommon="urn:Exslt.ExsltCommon" xmlns:Exslt.ExsltDatesAndTimes="urn:Exslt.ExsltDatesAndTimes" xmlns:Exslt.ExsltMath="urn:Exslt.ExsltMath" xmlns:Exslt.ExsltRegularExpressions="urn:Exslt.ExsltRegularExpressions" xmlns:Exslt.ExsltStrings="urn:Exslt.ExsltStrings" xmlns:Exslt.ExsltSets="urn:Exslt.ExsltSets" xmlns:MailEngine="urn:MailEngine" xmlns:pdcalendar="urn:pdcalendar" xmlns:Designit.VideoEmbed="urn:Designit.VideoEmbed" xmlns:tagsLib="urn:tagsLib" xmlns:BlogLibrary="urn:BlogLibrary" 
 exclude-result-prefixes="msxml umbraco.library Exslt.ExsltCommon Exslt.ExsltDatesAndTimes Exslt.ExsltMath Exslt.ExsltRegularExpressions Exslt.ExsltStrings Exslt.ExsltSets MailEngine pdcalendar Designit.VideoEmbed tagsLib BlogLibrary ">
 

<xsl:output method="xml" omit-xml-declaration="yes"/>
<xsl:param name="currentPage"/>
<xsl:template match="/">
<xsl:variable name="loggedOutTemplate" select="2388" />
<xsl:variable name="currentId" select="$currentPage/@id" />        
<xsl:choose>                
 <xsl:when test="umbraco.library:IsLoggedOn()">                        
  <!-- <xsl:value-of select="umbraco.library:RenderTemplate($currentId,$loggedInTemplate)" disable-output-escaping="yes" /> -->
  <umbraco:Macro Alias="frmBlogComment" runat="server"></umbraco:Macro>                 
 </xsl:when>                
 <xsl:otherwise>                        
  <xsl:value-of select="umbraco.library:RenderTemplate($currentId,$loggedOutTemplate)" disable-output-escaping="yes" />                
 </xsl:otherwise>        
</xsl:choose>
</xsl:template>
</xsl:stylesheet>