Hi, pgfplots seems broken with the latest standalone.With the example \usemodule[pgfplots] \starttext Foo \stoptext Best regards, Mikael lua error > error on line 75 in file /opt/ConTeXt/tex/texmf-modules/tex/generic/pgf/libraries/luamath/pgflibraryluamath.code.tex: .../ConTeXt/tex/texmf-context/tex/context/base/util-lib.lua:246: module 'pgfluamath.functions' not found: no field package.preload['pgfluamath.functions'] no file '/usr/local/share/lua/5.2/pgfluamath/functions.lua' no file '/usr/local/share/lua/5.2/pgfluamath/functions/init.lua' no file '/usr/local/lib/lua/5.2/pgfluamath/functions.lua' no file '/usr/local/lib/lua/5.2/pgfluamath/functions/init.lua' no file './pgfluamath/functions.lua' no file '/usr/local/lib/lua/5.2/pgfluamath/functions.so' no file '/usr/local/lib/lua/5.2/loadall.so' no file './pgfluamath/functions.so' no file '/usr/local/lib/lua/5.2/pgfluamath.so' no file '/usr/local/lib/lua/5.2/loadall.so' no file './pgfluamath.so' stack traceback: [C]: in function 'savedrequire' .../ConTeXt/tex/texmf-context/tex/context/base/util-lib.lua:246: in function 'require' [\directlua]:1: in main chunk 65 \let\pgfutil@directlua\directlua 66 \pgfutil@directlua{% 67 tex.enableprimitives('pgfutil@',{'luaescapestring'})} 68 \else 69 \def\pgfutil@directlua#1{} 70 \def\pgfutil@luaescapestring#1{} 71 \fi 72 73 \pgfutil@directlua{% 74 pgfluamathfunctions = require("pgfluamath.functions") 75 >> pgfluamathparser = require("pgfluamath.parser")} 76 77 78 % Patch some configuration macros such that the modifications are 79 % available in LUA as well: 80 \pgfkeys{ 81 /pgf/trig format/deg/.add code={}{\directlua{pgfluamathfunctions.setTrigFormat("deg")}\aftergroup\pgfmath@settrigformat}, 82 /pgf/trig format/rad/.add code={}{\directlua{pgfluamathfunctions.setTrigFormat("rad")}\aftergroup\pgfmath@settrigformat}, 83 } 84 % ... and reactivate the key: 85 \pgfmathiftrigonometricusesdeg{%