Hi,
I don't see why the table of contents does not appear. On the other hand,
the 12 chapters are present.
Thanks
Fabrice


\startproduct[terminale-manual]

  \project[terminale-environment]
  \startfrontmatter

    \setuppagenumbering
       [location=]

    \definefont
      [ChapterTextStyle]
      [SansBold*default sa 2.2]

    \setuphead
      [title]
      [style=ChapterTextStyle,
       align=flushright]

    \setuplist
       [chapter]
       [style=bold,
        alternative=b,
        width=1em]

    \setuplist
       [section]
       [margin=1em,
        width=1.75em]

    \setuplist
       [subsection]
       [margin=2.75em,
        width=2.25em,
       distance=\spaceamount]


    \starttitle[title=Table des matières]

         \placelist
           [chapter,section,subsection,subsubsection]
           [criterium=all,
           interaction=all,
            alternative=c]

      \stoptitle

    \stopfrontmatter

    \startbodymatter
      \component[chapitre_1]
      \component[chapitre_2]
      \component[chapitre_3]
      \component[chapitre_4]
      \component[chapitre_5]
      \component[chapitre_6]
      \component[chapitre_7]
      \component[chapitre_8]
      \component[chapitre_9]
      \component[chapitre_10]
      \component[chapitre_11]
      \component[chapitre_12]
    \stopbodymatter

\stopproduct