Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/defer/__init__.py", line 472, in _inline_callbacks result = gen.throw(result.type, result.value, result.traceback) File "/usr/lib/python2.7/dist-packages/aptdaemon/gtk3widgets.py", line 640, in _run yield self._transaction.run() DBusException: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.