Hello, the same problem still happens to me.
/Applications/Spine.app/Contents/MacOs/Spine -e export.json
2020-11-07 22:26:35.898 Spine[13541:496009] No Info.plist file in application bundle or no NSPrincipalClass in the Info.plist file, exiting
I have reinstalled Spine.
Spine: ver. 3.8.99
OS: macOS 10.15.7
How can I fix this?
