> On Jun 23, 2019, at 1:38 AM, Craig Dabelstein <craig.dabelst...@gmail.com> > wrote: > > Hi Lilyponders, > > Can anyone tell me what this error message means when trying to compile a > file? > > Drawing > systems.../home/gub/NewGub/gub/target/darwin-x86/src/lilypond-git.sv.gnu.org--lilypond.git-stable-2.20/flower/include/drul-array.hh:35: > failed assertion `d == 1 || d == -1' > Exited with exit status 1.
This is my least favorite kind of error! Whenever I have these, it often concerns beaming, especially when LP is trying to beam more than two notes but, because of a misplaced octave or perhaps a clef change, it can't draw a satisfactory beam. Sometimes, just turning off beaming in 4s can allow the file to compile so that you can start investigating. http://lilypond.org/doc/v2.19/Documentation/notation/beams.en.html If that doesn't work, and if the file has been compiling fine right along, I'll assume the issue has to do with the part most recently entered. I'll stick a %} at the end of the part and then pick a reasonable point to put a %{ and, with that section now "turned off", I'll see if the piece can compile. If not, I keep moving the %{ earlier and earlier until it does. Hope this helps, Dan _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user