On 2013–03–21 JIN Xiao-Yong wrote:

> Using the new beta from context-minimal
> 
> […]
> 
> This happens with context running on a file generated by gnuplot 4.6.1.  I
> have been using context in the texlive 2012 without any problem.

The gnuplot module is broken at the moment. I posted a workaround
some time ago. Before loading the module:

  \unprotected
  \def\@@GNUPLOT@term@context@linejoin{rounded}
  \def\@@GNUPLOT@term@context@is@dashed{true}
  \def\@@GNUPLOT@term@context@linewidth{1}
  \def\@@GNUPLOT@term@context@fontscale{1}
  \def\@@GNUPLOT@term@context@points{metapost}
  \protected

This, however invalidates any later setup. I am working on fixing
the module.


Marco