Error:
Unable to connect to libvirt qemu:///system. Verify that the 'libvirtd' daemon is running
Fix:
permission issue, need to add your user to some groups and re-log
 
libvirt:x:130:youruser
libvirt-qemu:x:64055:libvirt-qemu,youruser
libvirt-dnsmasq:x:131:youruser

reboot
#QEMU
#QEMU