On Tue, 20 Nov 2012, Thomas Weißschuh wrote:

> Hi,
>
> while trying to use the module pgfplots from latest ConTeXt minimals I
> encountered the following error:
>
>  [..]
>  )) (/home/t-8ch/Projekte/context/minimals/tex/texmf-modules/tex/generic/pgfplots/libs/pgfplotslibrary.code.tex) (/home/t-8ch/Projekte/context/minimals/tex/texmf-modules/tex/generic/pgfplots/oldpgfcompatib/pgfplotsoldpgfsupp_loader.code.tex (/home/t-8ch/Projekte/context/minimals/tex/texmf-modules/tex/generic/pgf/libraries/pgflibraryfpu.code.tex)) (/home/t-8ch/Projekte/context/minimals/tex/texmf-modules/tex/generic/pgfplots/util/pgfplotsutil.codetex
>  ! LuaTeX error <\directlua >:1: module 'pgfplots.lua' not found:
>  	no field package.preload['pgfplots.lua']
>  	no file './pgfplots/lua.so'
>  	no file '/usr/local/lib/lua/5.1/pgfplots/lua.so'
>  	no file '/usr/local/lib/lua/5.1/loadall.so'
>  	no file './pgfplots.so'
>  	no file '/usr/local/lib/lua/5.1/pgfplots.so'
>  	no file '/usr/local/lib/lua/5.1/loadall.so'
>  stack traceback:
>  	[C]: in function 'require'
>  	<\directlua >:1: in main chunk.
>
> ConTeXt version: 2012.11.16 23:51

See: http://sourceforge.net/mailarchive/message.php?msg_id=29944181

> This could be fixed by removing the suffix '.lua' from the argument
> to `require(pgfplots.lua)` in line 1979 of the file
> tex/texmf-modules/tex/generic/pgfplots/util/pgfplotsutil.code.tex
>
>  diff --git a/tex/texmf-modules/tex/generic/pgfplots/util/pgfplotsutil.code.tex.old b/tex/texmf-modules/tex/generic/pgfplots/util/pgfplotsutil.code.tex
>  index 0ef2cb0..6d504a7 100644
>  --- a/tex/texmf-modules/tex/generic/pgfplots/util/pgfplotsutil.code.tex.old
>  +++ b/tex/texmf-modules/tex/generic/pgfplots/util/pgfplotsutil.code.tex
>  @@ -1976,7 +1976,7 @@
>   \catcode`\%=12 \gdef\pgfplotsPERCENT{%}}
>
>   \pgfutil@IfUndefined{directlua}{}{%
>  -	\directlua{require(\pgfplotsDQ pgfplots.lua\pgfplotsDQ)}%
>  +	\directlua{require(\pgfplotsDQ pgfplots\pgfplotsDQ)}%
>   }%
>
>   % swaps the content of two macros
>
> Is this report sufficient or should I also contact pgfplots upstream?

This will be fixed in the next release of pgfplots.

Aditya