when using biblatex, get error about missing commands from listings
from project.tex:
Extra \fi.
<argument> ...op@@ }\expandafter \@firstofone \fi
from listings:
Undefined control sequence.
<argument> ... \iffalse }{}\lst@ifnumberbychapter
Extra \else.
<argument> ... .\fi \@arabic \c@lstlisting }\else
Command \c@lstlisting already defined.