Yes of courses!
Try removing the object repository word in your test object and run again.
Which is correct?
ct10_CONTENU_PAGE_libelleFr
cee tee one zero…
ctl0_CONTENU_PAGE_libelleFr
cee tee elle zero
Very difficult to distinguish l and 1 in the attached image of HTML, but to me it seems to be elle, not one.
the second is correct
In that case, test it with this corrected xpath:
$x("//input[@id='ctl0_CONTENU_PAGE_libelleFr']")
Thanks for noticing that @kazurayam 