xmllint error

[David T.]

Hi,

I have begun the task of using Approved Methods to update the Guide document, and I have run into an error that I do not understand. The error is:

gnucash-guide.xml:473: element book: validity error : Element book content does not follow the DTD, expecting ((title , subtitle? , titleabbrev?)? , bookinfo? , (dedication | toc | lot | glossary | bibliography | preface | chapter | reference | part | article | appendix | index | setindex | colophon)*), got (bookinfo CDATA CDATA CDATA CDATA CDATA CDATA CDATA CDATA CDATA CDATA CDATA CDATA CDATA CDATA CDATA CDATA CDATA CDATA CDATA CDATA CDATA CDATA CDATA )
</book>

The reason I find this odd is that I have not edited the main xml file at all. I edited chapter 1, which doesn’t create any errors (i.e, this is the extent of the output I receive). 

I cloned the docs earlier today using the prescribed "git clone https://github.com/Gnucash/gnucash-docs gnucash-docs”, and received this error from executing "xmllint --valid --noout gnucash-guide.xml"

Can anyone explain to me why this error is cropping up, and what I need to do to make it go away?

Thanks,
David