我已经使用 Fedora 23 两个月了，从昨天起，DNF 就停止了安装或升级程序。
这是我在 Yum Extender - Powered by DNF 中收到的错误消息：
g-io-error-quark: GDBus.Error:org.freedesktop.DBus.Python.AttributeError: Traceback (most recent call last):
File "/usr/lib64/python3.4/site-packages/dbus/service.py", line 707, in _message_cb retval = candidate_method(self, *args, **keywords)
File "/usr/lib/python3.4/site-packages/dnfdaemon/server/init.py", line 83, in newFunc rc = func(*args, **kwargs)
File "/usr/share/dnfdaemon/dnfdaemon-system", line 537, in RunTransaction result = self.run_transaction()
File "/usr/lib/python3.4/site-packages/dnfdaemon/server/init.py", line 564, in run_transaction self._check_gpg_signatures(to_dnl)
File "/usr/lib/python3.4/site-packages/dnfdaemon/server/init.py", line 713, in _check_gpg_signatures result, errmsg = self.base.sigCheckPkg(po)
File "/usr/lib/python3.4/site-packages/dnf/util.py", line 79, in getattr % (C.name, name)) AttributeError: 'Base' object has no attribute 'sigCheckPkg' (36)
其他信息：Fedora 23、Mate 桌面。
启用存储库：fedora、updates、rpmfusion-free、rpmfusion-free-updates、rpmfusion-nonfree 和 rpmfusion-nonfree-updates
答案1
这是最近在 F23 和 F24 测试版上发现的一个错误。错误报告可在此处找到bugzilla.redhat.com
他们已经发布了针对此问题的修复程序，可以从此处下载koji.fedoraproject.org/
下载3个非源文件：
dnfdaemon-0.3.16-1.fc23.noarch.rpm
python-dnfdaemon-0.3.16-1.fc23.noarch.rpm
python3-dnfdaemon-0.3.16-1.fc23.noarch.rpm
您需要直接使用 dnf install 命令来安装它们。假设您已将它们下载到 ~/Downloads 文件夹，则可以从命令行按如下方式安装它们：
cd ~/Downloads
sudo dnf install ./dnfdaemon-0.3.16-1.fc23.noarch.rpm ./python-dnfdaemon-0.3.16-1.fc23.noarch.rpm ./python3-dnfdaemon-0.3.16-1.fc23.noarch.rpm