Dear all, Recently, I installed “Noto Sans CJK” font which is developed by Adobe and Google. After “mtxrun —generate”, luatex locates the font. For test, I run the following code and got “fatal error:no return code” message. Even though I didn’t include Korea test, it says the same error message. However, I can use the font in the text editor without problem. What is wrong in this case? Thank you. Best regards, Dalyoung %\definefontfamily[mainface] [rm] [Noto Sans CJKkr] %\setupbodyfont[mainface] \definefont[test][NotoSansCJKkr-Regular at 14pt] \starttext \test TeX uses different fonts for text and math, but it possible to replace certain characters in the math font with glyphs from a text font. %한글이 잘 되는지 모르겠네요. \stoptext log file: mtx-context | run 1: luatex --fmt="/Users/graph/ConTeXt/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en" --jobname="test" --lua="/Users/graph/ConTeXt/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en.lui" --no-parse-first-line --c:currentrun=1 --c:fulljobname="./test.tex" --c:input="./test.tex" --c:kindofrun=1 --c:maxnofruns=8 "cont-yes.mkiv" This is LuaTeX, Version beta-0.79.1 (TeX Live 2014/dev) (rev 4972) \write18 enabled. open source > 1 > 1 > /Users/graph/ConTeXt/tex/texmf-context/tex/context/base/cont-yes.mkiv ConTeXt ver: 2014.07.30 10:31 MKIV beta fmt: 2014.8.6 int: english/english system > 'cont-new.mkiv' loaded open source > 2 > 2 > /Users/graph/ConTeXt/tex/texmf-context/tex/context/base/cont-new.mkiv close source > 2 > 2 > /Users/graph/ConTeXt/tex/texmf-context/tex/context/base/cont-new.mkiv system > files > jobname 'test', input './test', result 'test' fonts > latin modern fonts are not preloaded languages > language 'en' is active open source > 2 > 3 > /Users/graph/Documents/TeXfiles/test.tex fonts > preloading latin modern fonts (second stage) fonts > 'fallback modern-designsize rm 12pt' is loaded backend > xmp > using file '/Users/graph/ConTeXt/tex/texmf-context/tex/context/base/lpdf-pdx.xml' pages > flushing realpage 1, userpage 1 close source > 2 > 3 > /Users/graph/Documents/TeXfiles/test.tex close source > 1 > 3 > /Users/graph/ConTeXt/tex/texmf-context/tex/context/base/cont-yes.mkiv mtx-context | fatal error: no return code, message: luatex: execution interrupted