I just finally installed Lilypond and jEdit with LilyPondTool on my PC-BSD box, and I'm having a bit of trouble.
I downloaded a piece from Mutopia, and when I tried to convert-ly, got the following message:
Error running external command. See the activity log about the problem. Cannot run probram"/python" (in directory "?usr/home/gord/Documents/songs/LilypondSets"): java.io.IOException: error=2, No such file or directory
Same result when I tried to compile the file.
It's probably a path thing, but I'm not a geek, so I don't necessarily know how to fix these things.