use docbook5 with xsltproc

Hi,

 

Dokbook is new to me and I don't understand the output of xsltproc. Unfortunately, I can't find a suitable answer or example on the Internet.

 

I have the following docbook example:

 

<book xmlns='http://docbook.org/ns/docbook'>

    <title>An Example Book</title>

    <titleabbrev>Example</titleabbrev>

    <info>

        <legalnotice><para>No notice is required.</para></legalnotice>

        <author><personname>

                <firstname>Norman</firstname><surname>Walsh</surname>

                </personname></author>

    </info>

    

    <dedication>

        <para>This book is dedicated to you.

        </para>

    </dedication>

    

    <preface><title>Foreword</title>

    <para>Some content is always required.

    </para>

    </preface>

    

    <chapter><title>A Chapter</title>

        <para>Content is required in chapters too.

        </para>

    </chapter>

    

    <appendix><title>Optional Appendix</title>

    <para>Appendixes are optional.

    </para>

    </appendix>

</book>

 

When I convert the docbook xls file to html with xsltproc I get following message:

 

xsltproc --output test.html /usr/share/xml/docbook/xsl-stylesheets-1.79.2/xhtml5/docbook.xsl Test_book.xml 

Note: namesp. cut : stripped namespace before processing           An Example Book 
Writing docbook.css for book

What exactly does the output mean?

 

From the research on the Internet I suspect that the stylesheet is not compatible with docbook5.

 

What am I doing wrong?

 

Thanks in advance

Pierre