Hi,
Those messages are expected, given your setup. In DocBook5, elements are
in the docbook namespace, as you specified in your document root element.
The original XSL stylesheets are not written for elements in that
namespace. When the stylesheet detects a root element in the docbook
namespace, it first builds a copy of the document in memory while stripping
the namespace from the elements. Then it processes the copy.
If you want to eliminate that message, then process with the docbook-xsl-ns
(namespace-aware) version of the stylesheets. That is in a separate
download on the SourceForge site. In general, I would recommend that set
for processing DocBook5 documents.
Bob Stayton
Sagehill Enterprises
DocBook Consulting
bobs@sagehill.net