[tex-live] beamer error

[Vladimir Lomov]

** Alessandro Languasco [2010-02-15 17:30:26 +0100]:

> Dear all,

> I was updating a set of slides for a lecture I have to do and 
> I encountered the following mistake during typesetting:

> (/usr/local/texlive/2009/texmf-dist/tex/latex/beamer/themes/font/beamerfontthem
> estructurebold.sty)) (./Untitled.aux)
> (/usr/local/texlive/2009/texmf-dist/tex/context/base/supp-pdf.mkii
> [Loading MPS to PDF converter (version 2006.09.02).]
> )
> *geometry* driver: auto-detecting
> *geometry* detected driver: pdftex
> ./Untitled.tex:9: Undefined control sequence.
> \Gm at lmargin ->\Geom at lmargin 

> l.9 \begin{document}

> The same file worked perfectly about three weeks ago (when I started to write it).

> So I tried with my linux box with the same error. 

> Well, maybe something is changed and I have just to simplify my 
> preamble.... let me try first with a standard example.... 
> but using the example on sourceforge (see the bottom of this message) 
> I got the same problem. 

> Do you have the same problem ?
[...]

Yes. This is due to new version of geometry (v5.0) which doesn't have
compatability settings (see changes.txt). I think you should report
this problem to beamer developers too.

For workaround you could add this
\makeatletter
\newif\ifGm at compatii
\makeatother

_before_ \documentclass.

-- 
There are many times when you want it to ignore the rest of the string just
like atof() does.  Oddly enough, Perl calls atof().  How convenient.  :-)
             -- Larry Wall in <1991Jun24.231628.14446 at jpl-devvax.jpl.nasa.gov>