On 12 oct. 2010, at 19:36, Aditya Mahajan wrote:

[…]
! LuaTeX error <main ctx instance>:1: attempt to index field 'define' (a nil value)
stack traceback:
<main ctx instance>:1: in main chunk.

system > error on line 5 in file test.tex: LuaTeX error ...

1 \usemodule [simplefonts][size=10pt]
2
3 \setmainfont[Fontin][expansion=quality,protrusion=quality]
4
5 >> \definesimplefont [NameFont] [FontinBold][size=16pt]
6
7 \starttext
8 \NameFont A
9 \stoptext

\dodefinesimplefont ...1("\luaescapestring {#2}")}
\ifcase \scaledfontmode \r...
l.5 ...efont [NameFont] [FontinBold][size=16pt]

Does anyone else get this error or is it something wrong on my machine?

Hi Aditya,

I do get the same exact error with your example: here is part of the console result:

! Undefined control sequence.
system   > error on line 5 in file error-simplefonts.tex: Undefined control sequence ...
1    %\definesimplefont fails in the latest beta. Minimal example:
2    \usemodule  [simplefonts][size=10pt]
3    \setmainfont[Fontin][expansion=quality,protrusion=quality]
4
5 >>  \definesimplefont [NameFont]   [FontinBold][size=16pt]
6
7    \starttext
8    \NameFont A
9    \stoptext
l.5 \definesimplefont
   [NameFont]   [FontinBold][size=16pt]
?
Process aborted

However as I thought this might be due to the fact that I don't have the font Fontin, I tried with another font, which I do have, CMUBright-Roman, but the result is the same.

I tried also with a few previous examples in which I had tried simplefonts, they don't work anymore.

All this with the latest release (ConTeXt version 2010-10-12).

Best regards: OK