我有 Linux Mint 18 的发行版，我想安装 Brother dcp195c 打印机定义扫描仪我在链接中使用了此方法
https://ubuntuforums.org/showthread.php?t=590793
我遇到这个错误消息：
(Gedit: 5809): Gtk-WARNING **: Calling Inhibit failed: GDBus.Error: org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files
** (gedit: 5809): WARNING **: Set document metadata failed: Setting attribute metadata :: gedit-spell-enabled not supported
** (gedit: 5809): WARNING **: Set document metadata failed: Setting attribute metadata :: gedit-encoding not supported
** (gedit: 5809): WARNING **: Set document metadata failed: Setting attribute metadata :: gedit-position not supported
有解决办法吗谢谢。