I forgot to mention: I am on macOS Catalina 10.15.2
I installed the Frescobaldi 3.1 dmg and it works. Only one problem: convert-ly called from frescobaldi gives this message: arch: posix_spawnp: /System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7: Bad CPU type in executable From the command line convert-ly works. In the above mentioned /System/Library/Frameworks/Python.framework/Versions there is no python2.7 Can I get frescobaldi to call the right python?