[virt-tools-list] issues with vmm-preferences.ui in glade3

[Leonardo Augusto Guimarães Garcia]

Hi,

While trying to edit vmm-preferences.ui in glade3 that is currently 
available in Fedora 18 (glade3-3.8.3-1.fc18.x86_64) I hit the following 
error that crashed glade-3:

(glade-3:2379): GLib-GObject-ERROR **: cannot create instance of 
abstract (non-instantiatable) type `GtkBox'

Is this a known issue or am I using the "wrong" version of glade3? It 
seems that the experience with glade varies a lot depending on the 
version being used...

Best regards,

Leonardo Garcia