Error starting Virtual Machine Manager: Unknown internal child: selection

Traceback (most recent call last):
  File "/usr/local/share/virt-manager/virt-manager.py", line 386, in <module>
    main()
  File "/usr/local/share/virt-manager/virt-manager.py", line 375, in main
    options.no_conn_auto)
  File "/usr/local/share/virt-manager/virt-manager.py", line 181, in show_engine
    engine.show_manager()
  File "/usr/local/share/virt-manager/virtManager/engine.py", line 715, in show_manager
    self._do_show_manager(None)
  File "/usr/local/share/virt-manager/virtManager/engine.py", line 657, in _do_show_manager
    manager = self.get_manager()
  File "/usr/local/share/virt-manager/virtManager/engine.py", line 618, in get_manager
    obj = vmmManager()
  File "/usr/local/share/virt-manager/virtManager/manager.py", line 75, in __init__
    vmmGObjectUI.__init__(self, "vmm-manager.ui", "vmm-manager")
  File "/usr/local/share/virt-manager/virtManager/baseclass.py", line 240, in __init__
    util.sanitize_gtkbuilder(self.uifile))
GError: Unknown internal child: selection