Hi, At the context meeting there was a bit of discussion about error messages. I looked into that a bit an ddecided to provide a summay option. The following text: \enabledirectives[logs.errors] % context --errors \setupinteraction[state=start] \environment is-not-there \usemodule[x][foobar] \starttext \chapter[foo]{foo} \in{foo}[foo] \in{bar}[bar] \chapter[bar]{bar} \in{foo}[foo] \in{bar}[bar] \xmlload{main}{crapcrap.xml}{} oeps \in{foo}[foo-a] oeps \char 999 \par oeps \in{foo}[foo-a] oeps \char 995 \par oeps \in{foo}[foo-b] oeps \char 991 \par \externalfigure[dummy] \dorecurse {10} { \samplefile{sapolsky} {\sl \char 999 \char 995 \char 991} {\bf \char 999 \char 995 \char 991} {\bfa \char 999 \char 995 \char 991} {\bfb \char 999 \char 995 \char 991} {\bfc \char 999 \char 995 \char 991} \par } \stoptext will produce (at the end of a run): system > start missing files system > tex is-not-there system > stop missing files modules > start missing modules modules > x-foobar modules > stop missing modules lxml > start problematic xml files lxml > 1 crapcrap.xml lxml > stop problematic xml files references > start missing references references > 4 [][foo-a] references > 2 [][foo-b] references > stop missing references fonts > start missing characters: c:/data/develop/tex-context/tex/texmf/fonts/opentype/public/lm/lmroman10-bold.otf fonts > 90 U+003DF ϟ GREEK SMALL LETTER KOPPA fonts > 90 U+003E3 ϣ COPTIC SMALL LETTER SHEI fonts > 90 U+003E7 ϧ COPTIC SMALL LETTER KHEI fonts > stop missing characters fonts > start missing characters: c:/data/develop/tex-context/tex/texmf/fonts/opentype/public/lm/lmroman12-bold.otf fonts > 10 U+003DF ϟ GREEK SMALL LETTER KOPPA fonts > 10 U+003E3 ϣ COPTIC SMALL LETTER SHEI fonts > 10 U+003E7 ϧ COPTIC SMALL LETTER KHEI fonts > stop missing characters fonts > start missing characters: c:/data/develop/tex-context/tex/texmf/fonts/opentype/public/lm/lmroman12-regular.otf fonts > 1 U+003DF ϟ GREEK SMALL LETTER KOPPA fonts > 1 U+003E3 ϣ COPTIC SMALL LETTER SHEI fonts > 1 U+003E7 ϧ COPTIC SMALL LETTER KHEI fonts > stop missing characters fonts > start missing characters: c:/data/develop/tex-context/tex/texmf/fonts/opentype/public/lm/lmromanslant12-regular.otf fonts > 10 U+003DF ϟ GREEK SMALL LETTER KOPPA fonts > 10 U+003E3 ϣ COPTIC SMALL LETTER SHEI fonts > 10 U+003E7 ϧ COPTIC SMALL LETTER KHEI fonts > stop missing characters graphics > start missing figures graphics > dummy graphics > stop missing figures In order to get the missing characters message we currently need to say \enabletrackers[fonts.missing] (which btw has some options, see manual) but in a next update of luatex you will get the log without this too. Specially for Taco there is: \enabledirectives[logs.errors=missing characters] which will quit with an exit state 1 (given that he runs an upcoming version of luatex). It was not that trivial to achieve this but at least it's there (soon). Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------