Hi,

In my file cours_premiere.tex if I indicate

 \startbodymatter
        \component[probabilites.tex]
 \stopbodymatter

I get the following error message

tex error       > tex error on line 49 in file ./cours_premiere.tex: Undefined control sequence \pgfmath@settrigformat

<inserted text>
    \pgfmath@settrigformat
    \pgfmath@settrigformat \pgfmath@settrigformat
<line 3.49>
        \stopbodymatter

39                [criterium=all,
40                interaction=all,
41                 alternative=c]
42        
43           \stoptitle
44          
45         \stopfrontmatter
46        
47         \startbodymatter
48             \component[probabilites.tex]
49 >>      \stopbodymatter
50        
51      
52     \stopproduct
The control sequence at the end of the top line of your error message was never
\def'ed. You can just continue as I'll forget about whatever was undefined.
mtx-context     | fatal error: return code: 1

TeX Output exited abnormally with code 1 at Tue Dec 28 15:31:31

On the other hand, if I indicate

\component[probabilites.tex]

 the file compiles without error.