xslt - Processing a GPX file with xsl (probably a namespace issue) -

this question looks duplicate of xpath query gpx files namespaces?, must missing because can't seem simple style sheet work. have input:

<?xml version="1.0" encoding="utf-8"?> <gpx xmlns:xsd="http://www.w3.org/2001/xmlschema" xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" version="1.0" creator="groundspeak pocket query" xsi:schemalocation="http://www.topografix.com/gpx/1/0 http://www.topografix.com/gpx/1/0/gpx.xsd http://www.groundspeak.com/cache/1/0 http://www.groundspeak.com/cache/1/0/cache.xsd" xmlns="http://www.topografix.com/gpx/1/0">   <name>ottawa pocket query</name>   <wpt lat="45.348517" lon="-75.825933">     <name>gc3hxaz</name>     <desc>craft maker box fishdetective, traditional cache (2/2.5)</desc>     <url>http://www.geocaching.com/seek/cache_details.aspx?guid=e86ce3f5-9e75-48a6-b47e-9415101fc658</url>     <groundspeak:cache id="2893138" available="true" archived="false" xmlns:groundspeak="http://www.groundspeak.com/cache/1/0">       <groundspeak:name>craft maker box</groundspeak:name>       <groundspeak:difficulty>2</groundspeak:difficulty>       <groundspeak:terrain>2.5</groundspeak:terrain>     </groundspeak:cache>   </wpt> </gpx> 

and stylesheet looks this:

<?xml version="1.0"?> <!--  --> <xsl:stylesheet version="1.0"                 xmlns:xsl="http://www.w3.org/1999/xsl/transform"         xmlns:groundspeak="http://www.groundspeak.com/cache/1/0"         >      <xsl:output method="html"/>      <xsl:template match="/">     cache names:         <xsl:apply-templates select="//wpt">     </xsl:apply-templates>     </xsl:template>      <xsl:template match="wpt">     <li><xsl:value-of select="groundspeak:cache/groundspeak:name"/></li>     </xsl:template>  </xsl:stylesheet> 

and expect list 1 element on it, "craft maker box", empty list.

what missing?

the default namespace http://www.topografix.com/gpx/1/0. should add , use prefix match wpt.

something this: (untested)

<xsl:stylesheet version="1.0"                 xmlns:xsl="http://www.w3.org/1999/xsl/transform"         xmlns:groundspeak="http://www.groundspeak.com/cache/1/0"         xmlns:gpx="http://www.topografix.com/gpx/1/0"         >      <xsl:output method="html"/>      <xsl:template match="/">     cache names:         <xsl:apply-templates select="//gpx:wpt">     </xsl:apply-templates>     </xsl:template>      <xsl:template match="gpx:wpt">     <li><xsl:value-of select="groundspeak:cache/groundspeak:name"/></li>     </xsl:template>  </xsl:stylesheet>