Dynamic XSLT Sort Routine to XML (NCName:* or QName was expected)

Question

I am trying to create a XSLT Stylesheet to perform dynamic sorts (via parameters) on XML data with the desired output being XML... I've declared everything static in my StyleSheet for debugging purposes:
XML Document:
<?xml version="1.0" encoding="UTF-8"?>
<Content>
<task:TASK id="25"
src:col="/db/iconnect/MappingCenterCRM/default/TASK"
src:key="25" xmlns:src="http://xml.apache.org/xindice/Query" xmlns:task="http://iconnect.com/schemas/task">
<task:user_id>123</task:user_id>
<task:long_description>This is my description...</task:long_description>
<task:priority>1</task:priority>
<task:status>Completed</task:status>
</task:TASK>
<task:TASK id="26"
src:col="/db/iconnect/MappingCenterCRM/default/TASK"
src:key="26" xmlns:src="http://xml.apache.org/xindice/Query" xmlns:task="http://iconnect.com/schemas/task">
<task:user_id>123</task:user_id>
<task:long_description>Another description...</task:long_description>
<task:priority>1</task:priority>
<task:status>New</task:status>
</task:TASK>
</Content>
Here is my Stylesheet:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:task="http://iconnect.com/schemas/task" xmlns:src="http://xml.apache.org/xindice/Query">
<xsl:output method="xml" />
<xsl:param name="sortBy" select="task:long_description" />
<xsl:param name="xPath" select="//Content/task:TASK" />
<xsl:param name="orderByType" select="ascending" />
<xsl:template match="$xPath | node()">
<xsl:copy>
<xsl:apply-templates>
<xsl:sort select="$sortBy" order="ascending"/>
</xsl:apply-templates>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
When I run in XMLSpy, I get the desired results, but when running using Xerces, I get the following error:
javax.xml.transform.TransformerException: A node test that matches either NCName:* or QName was expected.

Answer 1

I am trying to create a XSLT Stylesheet to perform dynamic sorts (via parameters) on XML data with the desired output being XML... I've declared everything static in my StyleSheet for debugging purposes:
XML Document:
<?xml version="1.0" encoding="UTF-8"?>
<Content>
<task:TASK id="25"
src:col="/db/iconnect/MappingCenterCRM/default/TASK"
src:key="25" xmlns:src="http://xml.apache.org/xindice/Query" xmlns:task="http://iconnect.com/schemas/task">
<task:user_id>123</task:user_id>
<task:long_description>This is my description...</task:long_description>
<task:priority>1</task:priority>
<task:status>Completed</task:status>
</task:TASK>
<task:TASK id="26"
src:col="/db/iconnect/MappingCenterCRM/default/TASK"
src:key="26" xmlns:src="http://xml.apache.org/xindice/Query" xmlns:task="http://iconnect.com/schemas/task">
<task:user_id>123</task:user_id>
<task:long_description>Another description...</task:long_description>
<task:priority>1</task:priority>
<task:status>New</task:status>
</task:TASK>
</Content>
Here is my Stylesheet:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:task="http://iconnect.com/schemas/task" xmlns:src="http://xml.apache.org/xindice/Query">
<xsl:output method="xml" />
<xsl:param name="sortBy" select="task:long_description" />
<xsl:param name="xPath" select="//Content/task:TASK" />
<xsl:param name="orderByType" select="ascending" />
<xsl:template match="$xPath | node()">
<xsl:copy>
<xsl:apply-templates>
<xsl:sort select="$sortBy" order="ascending"/>
</xsl:apply-templates>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
When I run in XMLSpy, I get the desired results, but when running using Xerces, I get the following error:
javax.xml.transform.TransformerException: A node test that matches either NCName:* or QName was expected.