I installed virt-manager via the Software Center. When I start it, it states that he 'libvirtd' daemon is running.
If I close the application, run the command sudo systemctl start libvirtd and start it up again, it works fine.
Remarkably after the virt-manager start up correctly, it asks for 'the sudo password', so it could have started libvirtd himself.
I don't know whether this is an error in Solus or in virt-manager.
Following are the details of the error message (partially in Dutch):
Kan geen verbinding maken met libvirt.
Verify that the 'libvirtd' daemon is running.
Libvirt URI is: qemu:///system
Traceback (most recent call last):File "/usr/share/virt-manager/virtManager/connection.py", line 904, in _do_open self._backend.open(self._do_creds_password) File "/usr/share/virt-manager/virtinst/connection.py", line 148, in open open_flags) File "/usr/lib/python2.7/site-packages/libvirt.py", line 105, in openAuth if ret is None:raise libvirtError('virConnectOpenAuth() failed')
libvirtError: Failed to connect socket to '/var/run/libvirt/libvirt-sock': Bestand of map bestaat niet