Hi, When running the five lines long file \starttext Bla bla \blank[foo] Bla bla \stoptext through context I get the error below (the foo in the blank is there to get an error, see the attached log file for the full log file). My question is why is context first telling me that the error is on line 8 and not 3? (In this particular example this is not a problem, but I'd like to grep for errors in the log file when running through the editor). I see that the error is later said to be at line 3... /Mikael ====== STARTERROR ====== tex error > error on line 8 in file /home/mickep/tmp/err.tex: ! Missing number, treated as zero <to be read again> f <argument> f oo \addaskedblankskip ..._vspacing_temp #1\dimexpr #2 \relax l.8 } \ctxcommand #12-\directlua {commands.#1} \spac_vspacing_yes_indeed ...mand {vspacing("#1")} \fi l.3 \blank[foo] 1 \starttext 2 Bla bla 3 \blank[foo] 4 Bla bla 5 \stoptext 6 ? ====== STOPERROR ======