I compile a .ly file and got the following programming error. I don't know how to resolve it. There is no reference line number that I can look at the code. There are 7 error messages - is that mean there are 7 places where the code is wrong? The pdf seems ok.
Starting lilypond.exe 2.17.16 [holy-moment.ly]...
Processing `C:/Users/Tsang/Dropbox/Lyndon/LiLy/holy-moment/holy-moment.ly'
Parsing...
Interpreting music...
Interpreting music...
Interpreting music...[8][16][24][32][40][48]
Preprocessing graphical objects...
Interpreting music...
MIDI output to `holy-moment.mid'...
Finding the ideal number of pages...
Fitting music on 3 or 4 pages...
Drawing systems...
programming error: could not find this grob's vertical axis group in the vertical alignment
continuing, cross fingers
programming error: could not find this grob's vertical axis group in the vertical alignment
continuing, cross fingers
programming error: could not find this grob's vertical axis group in the vertical alignment
continuing, cross fingers
programming error: could not find this grob's vertical axis group in the vertical alignment
continuing, cross fingers
programming error: could not find this grob's vertical axis group in the vertical alignment
continuing, cross fingers
programming error: could not find this grob's vertical axis group in the vertical alignment
continuing, cross fingers
programming error: could not find this grob's vertical axis group in the vertical alignment
continuing, cross fingers
Layout output to `holy-moment.ps'...
Converting to `./holy-moment.pdf'...
Success: compilation successfully completed
Completed successfully in 18.2".