Hi Henri,
Thank you for= answering me. We're entering an area that I do= n't really know. I replaced all ^^ by ^ but I&#= 39;m not sure I understood. I now have the followin= g message :

Thank you

Fab= rice

tex error =C2= =A0 =C2=A0 =C2=A0 > tex error on line 5 in file pgfplotsbinary.data.code= .tex: ! Undefined control sequence

l.5 \catcode`\^00=3D11 \expandaft= er\xdef\csname pgfp@bin@\the\counter \endcsname{^0
=C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00}\advance\counter by1
lua error:<= br>
?

<empty file>

The control sequenc= e 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 =C2=A0 =C2=A0 | fatal error: return code: 256

T= eX Output exited abnormally with code 1 at Tue Apr =C2=A07 14:15:58

Le=C2=A0mar. 7 avr. 2020 =C3=A0=C2=A004:21, Henri Menke <= ;henrimenke@gmail.com> a =C3= =A9crit=C2=A0:

T= he problem is that pgfplots uses the ^^ syntax to access characters but
this relies on ^ having catcode 7 which is not the case by default in
ConTeXt.=C2=A0 I had a similar issue in PGF before and that was fixed by ju= st
replacing the ^^ syntax with the ascii code constants from
syst-ini.mkxl.

Cheers, Henri

On 06/04/20, 22:23, Fabrice Couvreur wrote:
> Hi,
> Still with the idea of using lmtx, I get a compilation error when I us= e
> pgfplots.
> Thank you.
> Fabrice
> ####################################################
> open source=C2=A0 =C2=A0 =C2=A0> level 9, order 92, name 'pgfpl= otsbinary.data.code.tex'
>
> tex error=C2=A0 =C2=A0 =C2=A0 =C2=A0> tex error on line 42 in file<= br> > pgfplotsbinary.data.code.tex: ! Undefined control sequence
>
> l.42 \catcode`\ =3D11^^I\expandafter\xdef\csname pgfp@bin@
>
> \the\counter^^I\endcsname{^^20}\endgroup\advance\counter by1
> lua error:
>
> ?
>
>
>
> <empty file>
>
>
> 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 w= as undefined.
>
>
> mtx-context=C2=A0 =C2=A0 =C2=A0| fatal error: return code: 256
>
> TeX Output exited abnormally with code 1 at Mon Apr=C2=A0 6 22:19:01
> ______________________________________________________________________= _____________
> If your question is of interest to others as well, please add an entry= to the Wiki!
>
> maillist : ntg= -context@ntg.nl / http://www.ntg.nl/mailman/listin= fo/ntg-context
> webpage=C2=A0 : http://www.pragma-ade.nl / http://context.aanhet.ne= t
> archive=C2=A0 : https://bitbucket.org/phg/cont= ext-mirror/commits/
> wiki=C2=A0 =C2=A0 =C2=A0: http://contextgarden.net
> ______________________________________________________________________= _____________

___________________________________________________________________________= ________
If your question is of interest to others as well, please add an entry to t= he Wiki!

maillist : ntg-cont= ext@ntg.nl / http://www.ntg.nl/mailman/listinfo/nt= g-context
webpage=C2=A0 : http://www.pragma-ade.nl / http://context.aanhet.net=
archive=C2=A0 : https://bitbucket.org/phg/context-m= irror/commits/
wiki=C2=A0 =C2=A0 =C2=A0: http://contextgarden.net
___________________________________________________________________________= ________