Probably newbie problem

Hi all,

I have just installed xmlroff from source.  I have a set of docbook files that 
I am able to generate HTML from, with xsltproc.  Now I would like to create a 
PDF of them.  When I run the following command:

xmlroff -o index.pdf 
index.docbook /usr/share/xml/docbook/stylesheet/nwalsh/current/eclipse/eclipse.xsl

I get the output from the stylesheet, and then at the very end I get the 
following error:

(process:16005): libfo-CRITICAL **: file result-to-fo.c: line 973 
(fo_xml_doc_to_fo_and_area_trees): assertion `res->children != NULL' failed
libfo-Message: Error: No area tree present

I am at a loss what to do.  Please help me debug this.

Misty


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