Hi,
From my understanding, there are some superfluous quotes in context/base/mkiv/grph-con.lua, cancelling the proper quoting done by validcommand in context/base/mkiv/util-sbx.lua.
For my document, it tries to run something like (the space in the 'Google Drive' directory breaks the generation): inkscape ""[...]/Google Drive/[...].svg"" --export-dpi=600 --export-pdf=""[...]/Google Drive/[...].svg.pdf"" Applying this patch fixes the double quotes issue: local runner = sandbox.registerrunner { name = "svg to something", program = "inkscape", template = longtostring [[ - "%oldname%" + %oldname% --export-dpi=%resolution% - --export-%format%="%newname%" + --export-%format%=%newname% ]], However, it seems there are more similar quotes in the other templates of the file. mtx-context | current version: 2019.04.16 08:54 (I hope this is the proper way of reporting.) Regards.