# Are packages siunitx and xfrac incompatible? - “redefsymbols” [closed]

Is this a bug? Where can this be reported? Can someone of you report this?

Code:

\documentclass{article}
\usepackage{siunitx}
\usepackage{xfrac}

\begin{document}
bla
\end{document}


Output:

redefsymbols
bla


However, with this code:

\documentclass{article}
\usepackage{xfrac}
\usepackage{siunitx}

\begin{document}
bla
\end{document}


Output:

bla


Both work fine for me; add \listfiles immediately before your begin{document} and check that your system is up to date. In general, package ordering can matter (especially with hyperref for example) –  cmhughes Jan 7 '13 at 22:43