Hey list, Nightly 2012.07.04 appears to break when compiling my book. I see the following: ! Undefined control sequence. \math_arrows_construct_single ...s \p_mathspacing \endcsname \p_mathspacing ... \math_arrows_handle_finalize ...7}{#1}{#4}{#8}{#9} }\else \mathrel {\math_arr... \mathematics ...mmode #1\else \normalstartimath #1 \normalstopimath \fi \445>i:gives ...e \mathematics {\xrightarrow {}{}} \enspace l.11 \chemicalgives \inlinechemical ...emicals.inline(\!!bs #1\!!es )} } l.128 \inlinechemical{CO_2,+,H_2,+,->,H_2O,+,CO} E ? You want to edit file Terms_and_Concepts/Terms_and_Concepts.tex at line 11 The file in question is located here: https://bazaar.launchpad.net/~avaneya/avaneya/trunk/view/head:/Documentation... -- Kip Warner -- Software Engineer OpenPGP encrypted/signed mail preferred http://www.thevertigo.com