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 engrave. Uninstalled Frescobaldi. Manually deleted all references to it from the registry. Reinstalled it. No change. Tried to run lilypond manually. (Lilypond and Lilypond/usr/bin are in my path.) lilypond -h works fine and gives me the output I expect. lilypond-windows -h does nothing. I uninstalled lilypond. Manually removed most mentions in the registry. Downloaded it again and reinstalled. It still does nothing whenever Frescobaldi or I try run it.
Any suggestions as to what to try next would be appreciated.
Thanks
Paul McKay