Just FYI, I'm running Windows 10 and Lilypond 2.20 (and 2.21) and
lilypond-windows -h does nothing as you say. But if I call
lilypond-windows test.ly then it creates test.pdf
Also running it via Frescobaldi v3.1.2 works perfectly.
I tried to change lilypond-windows.exe to lilypond.exe in
I'm trying to upgrade from 2.19 to 2.20 on a laptop running Win 10.
Uninstalled lilypond and Frescobaldi. Reinstalled 2.20. Loaded .ly file.
Asked to engrave it. It worked but there were errors in the .ly file. Fixed
them. Asked to engrave it. Nothing happened. Repeatedly … No other files
would
