我刚刚在 VM VirtualBox 上安装了 Lubuntu。
当我从终端运行应用程序时，例如。firefox，它可以工作，但终端会弹出一些警告。
maciex@maciex-pc:~$ firefox
(firefox:1152): Gtk-WARNING **: 16:15:43.300: Theme parsing error: <data>:1:34: Expected ')' in color definition
(firefox:1152): Gtk-WARNING **: 16:15:43.300: Theme parsing error: <data>:1:77: Expected ')' in color definition
(firefox:1152): GLib-GIO-CRITICAL **: 16:15:43.425: g_dbus_proxy_new: assertion 'G_IS_DBUS_CONNECTION (connection)' failed
(firefox:1152): GLib-GIO-CRITICAL **: 16:15:43.425: g_dbus_proxy_new: assertion 'G_IS_DBUS_CONNECTION (connection)' failed
(firefox:1152): GLib-GIO-CRITICAL **: 16:15:43.425: g_dbus_proxy_new: assertion 'G_IS_DBUS_CONNECTION (connection)' failed
(firefox:1152): GLib-GIO-CRITICAL **: 16:15:43.426: g_dbus_proxy_new: assertion 'G_IS_DBUS_CONNECTION (connection)' failed
(firefox:1152): GLib-GIO-CRITICAL **: 16:15:43.426: g_dbus_proxy_new: assertion 'G_IS_DBUS_CONNECTION (connection)' failed
这与 …