> Fabrice Couvreur <mailto:fabrice1.couvreur@gmail.com>
> 30. Juli 2015 15:21
> Hi,
> In my project, there is an env-03.tex file that contains this :
>
> """"""""""""""""""""""""""""""""""""""""""""""""
> \startenvironment env-03
>
> \defineenumeration
>   [def]
>   [text={Définition},
>    headstyle={\bf\feature[+][f:smallcaps]},
>    width=fit,
>    alternative=left,
>    stopper={.}]
>
> \stopenvironment
You’re redefining the \def command which is needed by TeX because all 
internal
commands are created with this primitive. Use a different name for your 
environment
(e.g. defintion) to avoid this problem.

Wolfgang