Dear ntg-context@ntg.nl : I am new to ConTeXt, so if this is not a very good question, please accept my apologies in advance. I first tried sending this message to the help address at contextgarden.net , and the reply I received suggested that this list would be the more appropriate venue. I am trying to install ConTeXt on my Mac, and am following the StandAlone ConTeXt instructions on the page: http://wiki.contextgarden.net/Mac_Installation#Installing_MacTeX I installed MacTeX without problem, and then tried to follow the instructions for Standalone ConTeXt. At the end of Section 3.2 on that page, when I tried to execute the command: > sh ./first-setup.sh --modules=all --engine=luatex it ran for a minute or so, but ultimately gave me the error message copied below. > This is LuaTeX, Version beta-0.85.0 (TeX Live 2016/dev) (rev 5550) (INITEX) > system commands enabled. > (/sw/share/texmf-dist/tex/context/base/cont-en.mkiv (/sw/share/texmf-dist/tex/context/base/context.mkiv (/sw/share/texmf-dist/tex/context/base/syst-ini.mkiv > ! Undefined control sequence. > l.842 \pdfminorversion > \plusfive > ? It seems that I am missing some kind of software prerequisite, but I am really not sure. Any suggestions you might have for getting around this problem would be very much appreciated. Sincerely, Bruce Boghosian Bruce M. Boghosian Professor, Department of Mathematics, Tufts University Bromfield-Pearson Hall, Medford, Massachusetts 02155, USA