Unable to complete install '<type 'exceptions.AttributeError'> 'NoneType' object has no attribute 'setup'
Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/create.py", line 616, in do_install
    dom = guest.start_install(False, meter = meter)
  File "/usr/lib/python2.5/site-packages/virtinst/Guest.py", line 762, in start_install
    return self._do_install(consolecb, meter)
  File "/usr/lib/python2.5/site-packages/virtinst/Guest.py", line 778, in _do_install
    self._create_devices(meter)
  File "/usr/lib/python2.5/site-packages/virtinst/Guest.py", line 682, in _create_devices
    nic.setup(self.conn)
AttributeError: 'NoneType' object has no attribute 'setup'
'