From BIF Guidelines Wiki

Currently, there is a bug in the Docbook extension that fails on table generation. I have kept this page here to explore new releases of the Docbook extension and will update this page when it works. For now, please ignore this page. You may want to experiment with the "Create a book" selection in the box to your left, but it to has a bug when trying to create a PDF. The book selection does work!

Get Docbook - BIF Guidelines