Uwe Siart <
use...@siart.de> writes:
> % ------------------------------
> \documentclass{article}
> \usepackage{xfrac}
> \usepackage{siunitx}
> \sisetup{
> fraction-function = \sfrac,
> per-mode = fraction,
> }
> \begin{document}
> \SI{3}{\m\per\s}
> \end{document}
> % ------------------------------
>
> gives me
>
> ,----
> | ! Missing number, treated as zero.
> | <to be read again>
> | \relax
> | l.9 \SI{3}{\m\per\s}
> |
> | ! Illegal unit of measure (pt inserted).
> | <to be read again>
> | \relax
> | l.9 \SI{3}{\m\per\s}
> `----