Error Message:

Missing $ inserted

asdfasdf\ref{sec:asdf}

I've inserted a begin-math/end-math symbol since I think

you left one out. Proceed, with fingers crossed.

Solution:

The error was caused by having \oslash in my math macro TeX, LyX for the \null

Keywords:

lyx cross reference math macro

lyx cross reference math macro begin-math end-math error left one out