Traceback (most recent call last):
  File "/usr/bin/ubuntu-vm-builder", line 28, in <module>
    VMBuilder.run()
  File "/usr/lib/python2.6/dist-packages/VMBuilder/__init__.py", line 65, in run
    frontend.run()
  File "/usr/lib/python2.6/dist-packages/VMBuilder/plugins/cli/__init__.py", line 68, in run
    vm.create()
  File "/usr/lib/python2.6/dist-packages/VMBuilder/vm.py", line 476, in create
    self.preflight_check()
  File "/usr/lib/python2.6/dist-packages/VMBuilder/vm.py", line 426, in preflight_check
    self.call_hooks('preflight_check')
  File "/usr/lib/python2.6/dist-packages/VMBuilder/vm.py", line 179, in call_hooks
    getattr(self.distro, func)()
  File "/usr/lib/python2.6/dist-packages/VMBuilder/plugins/ubuntu/distro.py", line 139, in preflight_check
    if self.vm.ec2:
AttributeError: 'VM' object has no attribute 'ec2'