Comment # 7 on bug 933242 from George Anchev

It is now an issue in 13.2 too since the recent zypper update.

Please refer to this thread for more info:

https://forums.opensuse.org/showthread.php/508510-virt-manager-throws-an-error-after-downgrade-from-Tumbleweed-to-13-2?p=2718828#post2718828