package:libvirt-daemon-system:4.0.0-1ubuntu8.5
Setting up libvirt-daemon-system (4.0.0-1ubuntu8.5) ...
Enabling libvirt default network
E: Command line option --mode is not understood in combination with the other options
dpkg: error processing package libvirt-daemon-system (--configure):
 installed libvirt-daemon-system package post-installation script subprocess returned error exit status 100