libvirtError: внутренняя ошибка: клиентский сокет закрыт

Question

Эта ошибка возникает при установке виртуальной машины Debian в qemu-KVM с помощью libvirt

error while establishing the connection « qemu:///system » : internal error: client socket is closed

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/engine.py", line 296, in _tick
    conn.tick()
  File "/usr/share/virt-manager/virtManager/connection.py", line 1311, in tick
    self._tick(noStatsUpdate)
  File "/usr/share/virt-manager/virtManager/connection.py", line 1320, in _tick
    self.hostinfo = self.vmm.getInfo()
  File "/usr/lib/python2.7/dist-packages/libvirt.py", line 3341, in getInfo
    if ret is None: raise libvirtError ('virNodeGetInfo() failed', conn=self)
libvirtError: internal error: client socket is closed