Saya menjalankan virt-manager di RHEL 7.0, tetapi selalu menampilkan " Gtk couldn't be initialized ": [root@dhb5 ~]# virt-manager --debug --nofork 2015-08-17 03:21:09,895 (cliutils:75): virt-manager startup 2015-08-17 03:21:09,895 (virt-manager:201): Launched as: