Issues with programlistingco

[Carlos Araya <carlos.araya@gmail.com>]

hello:

I've tried both of the examples below to generate a callout programlisting in my ebook. 

The first version uses areaspec following the example on TDG (http://docbook.org/tdg51/en/html/programlistingco.html) and is located at https://gist.github.com/2493163
This version doesn't display the callout bugs on the programlisting. 

The second version I tried is a modification of the co tag from TDG (http://docbook.org/tdg51/en/html/co.html) and is located at https://gist.github.com/2493179
This version displays the callout bugs but fails epub validation with the following error

     [java] ERROR: docbook-howto.epub/OEBPS/ch02.xhtml(10,138): 'OEBPS/images/callouts/5.png': referenced resource exists, but not declared in the OPF file
     [java] ERROR: docbook-howto.epub/OEBPS/ch02.xhtml(12,84): 'OEBPS/images/callouts/6.png': referenced resource exists, but not declared in the OPF file
     [java] ERROR: docbook-howto.epub/OEBPS/ch02.xhtml(26,156): 'xml.declaration': fragment identifier is not defined in 'OEBPS/ch02.xhtml'
     [java] ERROR: docbook-howto.epub/OEBPS/ch02.xhtml(26,482): 'docbook.root': fragment identifier is not defined in 'OEBPS/ch02.xhtml'
     [java] ERROR: docbook-howto.epub/OEBPS/ch02.xhtml(26,866): 'default.namespace': fragment identifier is not defined in 'OEBPS/ch02.xhtml'
     [java] ERROR: docbook-howto.epub/OEBPS/ch02.xhtml(26,1184): 'xlink.namespace': fragment identifier is not defined in 'OEBPS/ch02.xhtml'
     [java] ERROR: docbook-howto.epub/OEBPS/ch02.xhtml(26,1848): 'chapter.title': fragment identifier is not defined in 'OEBPS/ch02.xhtml'
     [java] ERROR: docbook-howto.epub/OEBPS/ch02.xhtml(26,1957): 'chapter.paragraph': fragment identifier is not defined in 'OEBPS/ch02.xhtml'

I am also getting consistent validation warnings regarding two of the callout images not being added to the package.opf file 

     [java] WARNING: docbook-howto.epub: item (OEBPS/images/callouts/6.png) exists in the zip file, but is not declared in the OPF file
     [java] WARNING: docbook-howto.epub: item (OEBPS/images/callouts/5.png) exists in the zip file, but is not declared in the OPF file

The file exist and are located in the same directory than the 6 image files that do get added to the opf package. When I add them manually there are no problems. 

The callout section in my customization layer looks like this:

<xsl:param name="callout.graphics.extension">.png</xsl:param>
<xsl:param name="callout.graphics.path">images/callouts/</xsl:param>
<xsl:param name="callout.graphics" select="1"></xsl:param>
<xsl:param name="callout.list.table" select="1"></xsl:param>


Is there something that I'm doing wrong with the programlistingco? WHy would only certain image files get packaged in to the OPF package file? Do I need to recreate the images?

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