我最近将我的Debian系统升级到了Jessie / stable（其中还包括对Gnome 3.14.1的更新）。从那以后，当我跑
gnome-control-center network
，我收到以下错误：
(gnome-control-center:9451): GLib-CRITICAL **: g_variant_get_type: assertion 'value != NULL' failed
(gnome-control-center:9451): GLib-CRITICAL **: g_variant_type_is_subtype_of: assertion 'g_variant_type_check (type)' failed
(gnome-control-center:9451): GLib-CRITICAL **: g_variant_get_boolean: assertion 'g_variant_is_of_type (value, G_VARIANT_TYPE_BOOLEAN)' failed
(gnome-control-center:9451): GLib-CRITICAL **: g_variant_get_type: assertion 'value != NULL' failed
(gnome-control-center:9451): GLib-CRITICAL **: g_variant_type_is_subtype_of: assertion 'g_variant_type_check (type)' failed
(gnome-control-center:9451): GLib-CRITICAL **: g_variant_get_boolean: assertion 'g_variant_is_of_type (value, G_VARIANT_TYPE_BOOLEAN)' failed
此外，控制中心窗口中显示的网络信息（IP / DNS / ...）与实际设置不同 - 但仍然有效！
除此之外，我得到了
的类似输出gnome-control-center sharing
(gnome-control-center:9875): GLib-CRITICAL **: g_variant_get_type: assertion 'value != NULL' failed
(gnome-control-center:9875): GLib-CRITICAL **: g_variant_type_is_subtype_of: assertion 'g_variant_type_check (type)' failed
(gnome-control-center:9875): GLib-CRITICAL **: g_variant_get_boolean: assertion 'g_variant_is_of_type (value, G_VARIANT_TYPE_BOOLEAN)' failed
(gnome-control-center:9875): GLib-CRITICAL **: g_variant_unref: assertion 'value != NULL' failed
(gnome-control-center:9875): sharing-cc-panel-WARNING **: couldn't list networks: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SettingsDaemon.Sharing was not provided by any .service files
(gnome-control-center:9875): sharing-cc-panel-WARNING **: couldn't list networks: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SettingsDaemon.Sharing was not provided by any .service files
(gnome-control-center:9875): sharing-cc-panel-WARNING **: couldn't list networks: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SettingsDaemon.Sharing was not provided by any .service files
此处，所有共享选项均已禁用。我无法启用它们。
任何可能导致此类行为的建议？