Dear all, I have the following preface: <?xml version="1.0" encoding="UTF-8"?> <?xml-model href="http://docbook.org/xml/5.1/rng/docbook.rng" schematypens="http://relaxng.org/ns/structure/1.0"?> <?xml-model href="http://docbook.org/xml/5.1/sch/docbook.sch" type="application/xml" schematypens="http://purl.oclc.org/dsdl/schematron"?> <!DOCTYPE chapter[ <!ENTITY % my-entities SYSTEM "../Myentities.ent"> %my-entities; ]> <preface xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude" version="5.1"> <title>Vorwort zur vierten Auflage</title> <xi:include href="Vorwort4Auflage.xml"/> <xi:include href="Vorwort3Auflage.xml"/> <xi:include href="Vorwort2Auflage.xml"/> <xi:include href="Vorwort1Auflage.xml"/> </preface> The separate files are all composed like this: <?xml version="1.0" encoding="UTF-8"?> <?xml-model href="http://docbook.org/xml/5.1/rng/docbook.rng" schematypens="http://relaxng.org/ns/structure/1.0"?> <?xml-model href="http://docbook.org/xml/5.1/sch/docbook.sch" type="application/xml" schematypens="http://purl.oclc.org/dsdl/schematron"?> <!DOCTYPE chapter [ <!ENTITY % my-entities SYSTEM "../Myentities.ent"> %my-entities; ]> <simplesect xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude" version="5.1"><title>Vorwort</title> <para>bedanken wir uns auch an dieser Stelle.</para> <para>im Dezember 2006</para> </simplesect> A chapter where the error does not appear starts similarly, but with chapter instead of simplesect. However, changing <!DOCTYPE chapter [ to <!DOCTYPE simplesect [ does not help to get rid of the message. What do I wrong? Kind regards Bernhard -- spitzhalde9 D-79853 lenzkirch bernhard.kleine@gmx.net www.b-kleine.com, www.urseetal.net - thunderbird mit enigmail GPG schlüssel: D5257409 fingerprint: 08 B7 F8 70 22 7A FC C1 15 49 CA A6 C7 6F A0 2E D5 25 74 09