aaronk6's questions

在 virt-manager 中单击“打开”或“创建新虚拟机”时出现以下错误：

Error launching details: libosinfo: Unexpected file type (0)

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/vmwindow.py", line 39, in get_instance
    cls._instances[key] = vmmVMWindow(vm)
  File "/usr/share/virt-manager/virtManager/vmwindow.py", line 76, in __init__
    self._details = vmmDetails(self.vm, self.builder, self.topwin,
  File "/usr/share/virt-manager/virtManager/details/details.py", line 447, in __init__
    self.init_details()
  File "/usr/share/virt-manager/virtManager/details/details.py", line 774, in init_details
    self._os_list = vmmOSList()
  File "/usr/share/virt-manager/virtManager/oslist.py", line 39, in __init__
    self._init_state()
  File "/usr/share/virt-manager/virtManager/oslist.py", line 55, in _init_state
    all_os = virtinst.OSDB.list_os()
  File "/usr/share/virt-manager/virtinst/osdict.py", line 274, in list_os
    for name, osobj in self._all_variants.items():
  File "/usr/share/virt-manager/virtinst/osdict.py", line 198, in _all_variants
    loader = self._os_loader
  File "/usr/share/virt-manager/virtinst/osdict.py", line 190, in _os_loader
    loader.process_default_path()
gi.repository.GLib.GError: libosinfo: Unexpected file type (0)

这是在我从 Ubuntu 18.04 升级到 Ubuntu 20.04 之后开始的。

我怎样才能摆脱这个错误？