Error getting authority: Error initializing authority: Error calling StartServiceByName for org.freedesktop.PolicyKit1

Error getting authority: Error initializing authority: Error calling StartServiceByName for org.freedesktop.PolicyKit1: GDBus.Error:org.freedesktop.DBus.Error.TimedOut: Failed to activate service 'org.freedesktop.PolicyKit1': timed out (g-dbus-error-quark, 20)

 yum reinstall polkit