Hello, same problem here.
It seems that @Helge Meinhard workaround WORKS. Thanks!
In my case: Workstation: Xubuntu Focal 20.04 LTS Laptop.....: Xubuntu Bionic 18.04 LTS Server.....: Debian 10 Buster
(1) I didn't uninstall unison unison-all unison-all-gtk from Focal
(2) I copied the binaries /usr/bin/unison-2.48.4 and /usr/bin/unison-2.48.4-gtk from Bionic to Focal
(3) I deleted all ~/.unison/fp* (in all machines)
Various tasks between Focal and (Bionic or Buster) are working.
Hello, same problem here.
It seems that @Helge Meinhard workaround WORKS. Thanks!
In my case:
Workstation: Xubuntu Focal 20.04 LTS
Laptop.....: Xubuntu Bionic 18.04 LTS
Server.....: Debian 10 Buster
(1)
I didn't uninstall unison unison-all unison-all-gtk from Focal
(2) unison- 2.48.4 and /usr/bin/ unison- 2.48.4- gtk
I copied the binaries
/usr/bin/
from Bionic to Focal
(3)
I deleted all ~/.unison/fp* (in all machines)
Various tasks between Focal and (Bionic or Buster) are working.