How to fix the

[DSUN]

I am trying to design a XSL for the following XMl
whose schema is defined in another file,
But it gives me the following error when I transform
the XML with my XSL
"msxml3.dll error '80004005'

Reference to undeclared namespace prefix: 'vw'. "

XML
========================================
<?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?>
<vw:ExceptionView viewname=&quot;my exception view&quot; version=&quot;1.0&quot; xmlns:vw=&quot;x-schema:schema.xml&quot; >
<vwriority op=&quot;in&quot; values=&quot;High Medium&quot;/>
</vw:ExceptionView>
========================================

XSL
=========================================
<?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?>
<xsl:stylesheet version=&quot;1.0&quot; xmlns:xsl=&quot;

http://www.w3.org/1999/XSL/Transform&quot;

>

<xslutput method=&quot;xml&quot; version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; indent=&quot;no&quot; />

<xsl:template match=&quot;/&quot;>
<table width=&quot;900&quot; >

<tr >
<td width=&quot;25%&quot; >Priority </td>
<td width=&quot;75%&quot;>
<xsl:apply-templates select=&quot;vwriority&quot;/>
</td>
</tr>
</table>

</xsl:template>

<xsl:template match=&quot;vwriority&quot;>
<xsl:value-of select=&quot;@values&quot;/>
</xsl:template>

</xsl:stylesheet>
=======================================

schema which saved in the file schema.xml
in the same diretory
=======================================
<Schema xmlns=&quot;urn:schemas-microsoft-com:xml-data&quot; xmlns:d=&quot;urn:schemas-microsoft-com:datatypes&quot;>
<AttributeType name='version' d:type='string' required='yes'/>
<AttributeType name=&quot;viewname&quot; d:type=&quot;string&quot; required=&quot;yes&quot;/>
<AttributeType name=&quot;values&quot; d:type=&quot;nmtokens&quot;/>
<AttributeType name=&quot;op&quot; d:type=&quot;enumeration&quot; d:values=&quot;in not_in like&quot;/>


<ElementType name=&quot;ExceptionView&quot; content=&quot;eltOnly&quot; model=&quot;closed&quot; order=&quot;seq&quot;>
<attribute type=&quot;viewname&quot; required=&quot;yes&quot;/>
<attribute type='version'/>
<element type='priority' minOccurs='1' maxOccurs='1'/>
</ElementType>

<ElementType name=&quot;priority&quot; content=&quot;empty&quot; model=&quot;closed&quot; order=&quot;one&quot;>
<attribute type=&quot;op&quot;/>
<attribute type=&quot;values&quot;/>
</ElementType>
</Schema>

=======================================

&quot;msxml3.dll error '80004005'

Reference to undeclared namespace prefix: 'vw'. &quot;

Who knows this error and solutions
Thanks
David