This is the result of wingpanel -d
[_LOG_LEVEL_DEBUG 23:41:08.483823] [Gtk] Connecting to session manager
[_LOG_LEVEL_DEBUG 23:41:08.493360] Settings.vala:158: Loading settings from schema 'org.pantheon.desktop.wingpanel'
[_LOG_LEVEL_DEBUG 23:41:08.493840] Settings.vala:158: Loading settings from schema 'org.gnome.desktop.interface'
[_LOG_LEVEL_FATAL 23:41:08.496336] [Gtk] gtk_widget_get_visible: assertion 'GTK_IS_WIDGET (widget)' failed
[_LOG_LEVEL_FATAL 23:41:08.496386] System Panel will not function properly.
[_LOG_LEVEL_DEBUG 23:41:08.505732] User.vala:53: Connection to user account established
[_LOG_LEVEL_DEBUG 23:41:08.515046] UserBox.vala:36: Creating userbox for: Bilal Elmoussaoui : bilal
[_LOG_LEVEL_FATAL 23:41:08.519090] [Gtk] gtk_widget_set_margin_end: assertion 'GTK_IS_WIDGET (widget)' failed
[_LOG_LEVEL_FATAL 23:41:08.519136] System Panel will not function properly.
[_LOG_LEVEL_FATAL 23:41:08.519187] [Gtk] gtk_widget_set_margin_start: assertion 'GTK_IS_WIDGET (widget)' failed
[_LOG_LEVEL_FATAL 23:41:08.519222] System Panel will not function properly.
[_LOG_LEVEL_DEBUG 23:41:08.533699] User.vala:53: Connection to user account established
[_LOG_LEVEL_DEBUG 23:41:08.542814] UserBox.vala:36: Creating userbox for: Bilal Elmoussaoui : bilal
[_LOG_LEVEL_FATAL 23:41:08.547561] [Gtk] gtk_widget_set_margin_end: assertion 'GTK_IS_WIDGET (widget)' failed
[_LOG_LEVEL_FATAL 23:41:08.547608] System Panel will not function properly.
[_LOG_LEVEL_FATAL 23:41:08.547648] [Gtk] gtk_widget_set_margin_start: assertion 'GTK_IS_WIDGET (widget)' failed
[_LOG_LEVEL_FATAL 23:41:08.547679] System Panel will not function properly.
[_LOG_LEVEL_DEBUG 23:41:08.559339] UserBox.vala:36: Creating userbox for: Guest : guest_user
[_LOG_LEVEL_FATAL 23:41:08.559862] bluetooth_services_adapter_get_state: assertion 'self != NULL' failed
[_LOG_LEVEL_FATAL 23:41:08.559896] System Panel will not function properly.
[_LOG_LEVEL_WARN 23:41:08.559967] [GLib-GObject] invalid (NULL) pointer instance
[_LOG_LEVEL_FATAL 23:41:08.560008] [GLib-GObject] g_signal_connect_object: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
[_LOG_LEVEL_FATAL 23:41:08.560036] System Panel will not function properly.
[_LOG_LEVEL_FATAL 23:41:08.560239] bluetooth_services_adapter_get_state: assertion 'self != NULL' failed
[_LOG_LEVEL_FATAL 23:41:08.560271] System Panel will not function properly.
[_LOG_LEVEL_FATAL 23:41:08.560887] bluetooth_services_adapter_list_devices: assertion 'self != NULL' failed
[_LOG_LEVEL_FATAL 23:41:08.560922] System Panel will not function properly.
[_LOG_LEVEL_WARN 23:41:08.560967] [GLib-GObject] invalid (NULL) pointer instance
[_LOG_LEVEL_FATAL 23:41:08.561003] [GLib-GObject] g_signal_connect_object: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
[_LOG_LEVEL_FATAL 23:41:08.561030] System Panel will not function properly.
[_LOG_LEVEL_FATAL 23:41:08.561536] bluetooth_widgets_discovery_view_construct: assertion 'adapter != NULL' failed
[_LOG_LEVEL_FATAL 23:41:08.561569] System Panel will not function properly.
[_LOG_LEVEL_FATAL 23:41:08.561605] [GLib-GObject] g_object_ref_sink: assertion 'G_IS_OBJECT (object)' failed
[_LOG_LEVEL_FATAL 23:41:08.561632] System Panel will not function properly.
[_LOG_LEVEL_FATAL 23:41:08.561721] [Gtk] gtk_stack_add_named: assertion 'GTK_IS_WIDGET (child)' failed
[_LOG_LEVEL_FATAL 23:41:08.561751] System Panel will not function properly.
