xsl:choice

[Edward Dowgiallo]

I seem to be not getting the intended use of xsl:choice.   The following stylesheet segment causes fop to terminate with the message: ...; Line 78 Column 25; [ERROR]: null             <fo:block font-family="Helvetica" font-size="18pt" text-align="end">             <xsl:choice>               <xsl:when test="//eraname">                 <xsl:value-of select="//eraname"/>               </xsl:when>               <xsl:when test="//conflictname">                 <xsl:value-of select="//conflictname"/>               </xsl:when>               <xsl:otherwise>                 <xsl:text>History of the World</xsl:text>               </xsl:otherwise>             <xsl:choice>           </fo:block> 1st, a more verbose error message would be useful.   2nd, What I am trying to do is find out if the current element contains an element named "eraname", if it does I want to use the value of the element "eraname" If it doesn't I want to check if the current element contains a child element named "conflictname", if it does I want to use the value of the element "conflictname". If it doesn't I want to slap in some boiler plate text.   The xml file being processed when this fails does contain the child element "eraname".   I'd be more than happy to use a workaround here.   Thank you, Ed