After having spent quite some time to fix a problem with nomenclature, I thought to give a warning:
I generated a list of abbreviations in my LyX document using List>Toc>Nomenclature and got stuck while trying to produce a pdf file with LaTeX Error: Lonely \item--perhaps a missing list environment It turned out that one of the abbreviations was defined twice. To avoid this (in case of long documents with many abbreviations and a bad short term memory) I recommend to check the pdf file for double definition in case of doubt. Wolfgang
