Has something changed recently on how product-component structure is supposed to be used? I have three files: 1. prd.tex \environment env \startproduct prd \component cmp \stopproduct 2. env.tex \startenvironment env \define\testing{This is a test} \stopenvironment 3. cmp.tex \product prd \startcomponent cmp Testing \testing \stopcomponent When I compile cmp.tex, I get: %--------------------------%<----------------------------- mtx-context | run 1: luatex --fmt="/home/adityam/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en" --jobname="cmp" --lua="/home/adityam/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en.lui" --no-parse-first-line --c:currentrun=1 --c:fulljobname="./cmp" --c:input="./cmp" --c:kindofrun=1 --c:maxnofruns=8 "cont-yes.mkiv" This is LuaTeX, Version beta-0.76.0-2013040516 (rev 4627) \write18 enabled. (/home/adityam/media/opt/context-minimals/texmf-context/tex/context/base/cont-yes.mkiv ConTeXt ver: 2013.04.14 16:51 MKIV beta fmt: 2013.4.14 int: english/english system > 'cont-new.mkiv' loaded (/home/adityam/media/opt/context-minimals/texmf-context/tex/context/base/cont-new.mkiv) system > files > jobname 'cmp', input 'cmp', result 'cmp' fonts > latin modern fonts are not preloaded languages > language 'en' is active (cmp.tex{/home/adityam/media/opt/context-minimals/texmf-fonts/fonts/map/pdftex/context/mkiv-base.map} fonts > preloading latin modern fonts (second stage) fonts > typescripts > unknown library 'loc' {/home/adityam/media/opt/context-minimals/texmf-fonts/fonts/map/dvips/lm/lm-math.map}{/home/adityam/media/opt/context-minimals/texmf-fonts/fonts/map/dvips/lm/lm-rm.map} fonts > 'fallback modern rm 12pt' is loaded (prd.tex (env.tex) (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex (cmp.tex (prd.tex ! TeX capacity exceeded, sorry [text input levels=127]. system > tex > error on line 5 in file prd.tex: TeX capacity exceeded, sorry [ ... 1 \environment env 2 3 \startproduct prd 4 5 >> \component cmp 6 7 \stopproduct 8 \ctxcommand #1^^@-\directlua {commands.#1} l.5 } \ctxcommand #1^^@-\directlua {commands.#1} l.5 \component cmp ! ==> Fatal error occurred, no output PDF file produced! mtx-context | fatal error: return code: 1% %--------------------------%<----------------------------- Shouldn't the product file not load the component file (or anything else inside \startproduct .. \stopproduct) when compiling a component?