La génération automatique d'affiche a rencontré un problème:
This is pdfTeXk, Version 3.141592-1.40.3 (Web2C 7.5.6)
 %&-line parsing enabled.
entering extended mode
(/tmp/poster.tex
LaTeX2e <2005/12/01>
Babel  and hyphenation patterns for english, usenglishmax, dumylang, noh
yphenation, arabic, basque, bulgarian, coptic, welsh, czech, slovak, german, ng
erman, danish, esperanto, spanish, catalan, galician, estonian, farsi, finnish,
 french, greek, monogreek, ancientgreek, croatian, hungarian, interlingua, ibyc
us, indonesian, icelandic, italian, latin, mongolian, dutch, norsk, polish, por
tuguese, pinyin, romanian, russian, slovenian, uppersorbian, serbian, swedish, 
turkish, ukenglish, ukrainian, loaded.
(/usr/share/texmf/tex/latex/base/article.cls
Document Class: article 2005/09/16 v1.4f Standard LaTeX document class
(/usr/share/texmf/tex/latex/base/size11.clo))
(/usr/share/texmf/tex/latex/base/inputenc.sty
(/usr/share/texmf/tex/latex/base/latin1.def))
(/usr/share/texmf/tex/generic/babel/babel.sty
(/usr/share/texmf/tex/generic/babel/frenchb.ldf
(/usr/share/texmf/tex/generic/babel/babel.def)
*************************************
* Local config file frenchb.cfg used
*
(/usr/share/texmf/tex/generic/babel/frenchb.cfg))) (./poster.aux)
(/usr/share/texmf/tex/latex/lm/t1lmr.fd)
Overfull \hbox (36.42877pt too wide) in paragraph at lines 43--45
\smallheadfont LPENS, L367( on-site+zoom. For zoom mee-ting id, write to xian-g
yu.cao@phys.ens.fr

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[1]
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! Package inputenc Error: Keyboard character used is undefined
(inputenc)                in inputencoding `latin1'.

See the inputenc package documentation for explanation.
Type  H   for immediate help.
 ...                                              
                                                  
l.108 introduce new “
                     learning’’ degrees of freedom, often by relaxing away e...

? 
! Emergency stop.
 ...                                              
                                                  
l.108 introduce new “
                     learning’’ degrees of freedom, often by relaxing away e...

Output written on poster.dvi (1 page, 3516 bytes).
Transcript written on poster.log.

Si vous en avez la possibilité, merci de bien vouloir corriger les informations erronées.