Ok so i've install on my mac :
1. Macport
2. Emacs 24
3. Texlive

I want to make presentation with beamer :
Tutorial :
http://emacs-fu.blogspot.ca/2009/10/writing-presentations-with-org-mode-and.html
I've put this on my .emac
--

;; allow for export=>beamer by placing
;; #+LaTeX_CLASS: beamer in org files(unless (boundp 'org-export-latex-classes)
  (setq org-export-latex-classes nil))
(add-to-list 'org-export-latex-classes
  ;; beamer class, for presentations  '("beamer"
     "\\documentclass[11pt]{beamer}\n
      \\mode<{{{beamermode}}}>\n
      \\usetheme{{{{beamertheme}}}}\n
      \\usecolortheme{{{{beamercolortheme}}}}\n
      \\beamertemplateballitem\n
      \\setbeameroption{show notes}
      \\usepackage[utf8]{inputenc}\n
      \\usepackage[T1]{fontenc}\n
      \\usepackage{hyperref}\n
      \\usepackage{color}
      \\usepackage{listings}
      \\lstset{numbers=none,language=[ISO]C++,tabsize=4,
  frame=single,
  basicstyle=\\small,
  showspaces=false,showstringspaces=false,
  showtabs=false,
  keywordstyle=\\color{blue}\\bfseries,
  commentstyle=\\color{red},
  }\n
      \\usepackage{verbatim}\n
      \\institute{{{{beamerinstitute}}}}\n
       \\subject{{{{beamersubject}}}}\n"

     ("\\section{%s}" . "\\section*{%s}")

     ("\\begin{frame}[fragile]\\frametitle{%s}"
       "\\end{frame}"
       "\\begin{frame}[fragile]\\frametitle{%s}"
       "\\end{frame}")))

  ;; letter class, for formal letters
  (add-to-list 'org-export-latex-classes

  '("letter"
     "\\documentclass[11pt]{letter}\n
      \\usepackage[utf8]{inputenc}\n
      \\usepackage[T1]{fontenc}\n
      \\usepackage{color}"

     ("\\section{%s}" . "\\section*{%s}")
     ("\\subsection{%s}" . "\\subsection*{%s}")
     ("\\subsubsection{%s}" . "\\subsubsection*{%s}")
     ("\\paragraph{%s}" . "\\paragraph*{%s}")
     ("\\subparagraph{%s}" . "\\subparagraph*{%s}")))
--

After i've put this in one of my file

--
#+LaTeX_CLASS: beamer#+MACRO: BEAMERMODE presentation#+MACRO:
BEAMERTHEME Antibes#+MACRO: BEAMERCOLORTHEME lily#+MACRO:
BEAMERSUBJECT RMRF#+MACRO: BEAMERINSTITUTE Miskatonic University,
Astrology Dept.#+TITLE: Presentation with Org-Mode and Beamer#+AUTHOR:
Someone
--
Ive do c-e p to produce a pdf
This is the after message :
--
#+LaTeX_CLASS: beamer#+MACRO: BEAMERMODE presentation#+MACRO:
BEAMERTHEME Antibes#+MACRO: BEAMERCOLORTHEME lily#+MACRO:
BEAMERSUBJECT RMRF#+MACRO: BEAMERINSTITUTE Miskatonic University,
Astrology Dept.#+TITLE: Presentation with Org-Mode and Beamer#+AUTHOR:
Someone
--

What do i have to do to fix that.
Thanks


-- 
Posté par Steve Prud'Homme
sprudhom@gmail.com
514 466-3951