I have a clean kvm installation on ubuntu 12.04 x64  , when trying to create my first guest I get the following error:

 Unable to complete install: 'internal error cannot load AppArmor profile 'libvirt-ac760227-6849-b81e-15f6-a7eae418225f''

Traceback (most recent call last):

  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 45, in cb_wrapper

    callback(asyncjob, *args, **kwargs)

  File "/usr/share/virt-manager/virtManager/create.py", line 1909, in do_install

    guest.start_install(False, meter=meter)

  File "/usr/lib/python2.7/dist-packages/virtinst/Guest.py", line 1236, in start_install

    noboot)

  File "/usr/lib/python2.7/dist-packages/virtinst/Guest.py", line 1304, in _create_guest

    dom = self.conn.createLinux(start_xml or final_xml, 0)

  File "/usr/lib/python2.7/dist-packages/libvirt.py", line 2166, in createLinux

    if ret is None:raise libvirtError('virDomainCreateLinux() failed', conn=self)

libvirtError: internal error cannot load AppArmor profile 'libvirt-ac760227-6849-b81e-15f6-a7eae418225f'

some details:

 - the user used on the virt-manager connection is a memeber of the libvirtd group 

 - using ssh key auth from the virt-manager

Any Ideas?

Thanks!