# XeLaTeX problem? Undefined control sequence.

I'm new to LaTeX.

here

It says to be compiled with biber and XeLaTeX

Im trying with xelatex vc_10.tex but always getting errors, fixed them by searching the web but with this one I'm completely stuck.

Can anyone help with this one?

(/usr/share/texlive/texmf-dist/tex/latex/hyperref/hxetex.def
(/usr/share/texlive/texmf-dist/tex/latex/hyperref/puenc.def)
(/usr/share/texlive/texmf-dist/tex/generic/oberdiek/stringenc.sty)
(/usr/share/texlive/texmf-dist/tex/latex/oberdiek/rerunfilecheck.sty))
(/usr/share/texmf/tex/latex/biblatex/lbx/english.lbx) (./cv_10.aux)
(/usr/share/texmf/tex/latex/tipa/t3cmr.fd)
! Undefined control sequence.
\um_set_mathsymbol:nNNn #1#2#3#4->\tl_case:Nnn
#3{\mathop {\um_set_big_opera...
l.27 \begin{document}


these are the first lines of the file

\documentclass[]{friggeri-cv} % Add 'print' as an option into the square bracket to remove colors from this template for printing

\addbibresource{bibliography.bib} % Specify the bibliography file to include publications

\begin{document}


and gives the error on the \begin{document}

-
Welcome to TeX.SX! You may have a look on our starter guide. –  Jubobs May 24 '13 at 15:32
This is a LaTeX3 macro. Do you have those LaTeX3 packages installed? –  mafp May 24 '13 at 15:50
Which packages? I did sudo apt-get install texlive-latex3 –  chamini2 May 24 '13 at 15:54
\tl_case:Nnn is a rather new command. So probably your latex3 packages are outdated. –  Ulrike Fischer May 24 '13 at 16:21
@UlrikeFischer More precisely, they are mismatched: the version of unicode-math installed must be newer than the version of expl3. –  Joseph Wright May 24 '13 at 21:06