This looks to be the same bug as https://bugzilla.redhat.com/show_bug.cgi?id=1074120
Reproducible by installing Kubuntu (maybe any non-gnome based flavor), installing virt-manager and trying to make a new VM. Looks to be a dependency issue as qemu-kvm is missing. Maybe virt-manager should depend on qemu-kvm (or at least recommend). After installling qemu-kvm, restart and it works fine. ** Bug watch added: Red Hat Bugzilla #1074120 https://bugzilla.redhat.com/show_bug.cgi?id=1074120 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1448631 Title: Error launching manager: 'NoneType' object has no attribute 'get_default_storage_format' Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/engine.py", line 889, in _do_show_create self._get_create_dialog().show(src.topwin, uri) File "/usr/share/virt-manager/virtManager/create.py", line 170, in show self.reset_state(uri) File "/usr/share/virt- manager/virtManager/create.py", line 393, in reset_state self.addstorage.reset_state() File "/usr/share/virt- manager/virtManager/addstorage.py", line 196, in reset_state fmt = self.conn.get_default_storage_format() AttributeError: 'NoneType' object has no attribute 'get_default_storage_format' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virt-manager/+bug/1448631/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs