错误：「默认」：内部错误：无法初始化有效的防火墙后端

Question

我在virt-manager中创建了Windows10 VM。 但是，它是这样说的：

「default」：internal error: Failed to initialize a valid firewall backend

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/netlist.py", line 364, in validate_network
    netobj.start()
  File "/usr/share/virt-manager/virtManager/libvirtobject.py", line 82, in newfn
    ret = fn(self, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/network.py", line 81, in start
    self._backend.create()
  File "/usr/lib/python2.7/dist-packages/libvirt.py", line 2892, in create
    if ret == -1: raise libvirtError ('virNetworkCreate() failed', net=self)
libvirtError: internal error: Failed to initialize a valid firewall backend

怎么办？

Answer 1

安装此：

sudo apt install uml-utilities