#0  g_type_check_instance_cast (type_instance=type_instance@entry=0x56053c592390, iface_type=94580485547024) at ../../../../gobject/gtype.c:4057
  [Error: gtype.c was not found in source tree]
#1  0x0000560539e31d31 in device_ethernet_refresh_ui (device=0x56053c592390) at ../panels/network/net-device-ethernet.c:208
  203:         NMDevice *nm_device;
  204:         NMDeviceState state;
  205:         GtkWidget *widget;
  206:         gchar *speed = NULL;
  207: 
  208:         nm_device = net_device_get_nm_device (NET_DEVICE (device));
  209: 
  210:         widget = GTK_WIDGET (gtk_builder_get_object (device->builder, "label_device"));
  211:         gtk_label_set_label (GTK_LABEL (widget), net_object_get_title (NET_OBJECT (device)));
  212: 
  213:         widget = GTK_WIDGET (gtk_builder_get_object (device->builder, "device_off_switch"));
#2  0x00007f4d1f464cae in g_cclosure_marshal_VOID__BOOLEANv (closure=<optimized out>, return_value=<optimized out>, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0x56053bddaa30) at ../../../../gobject/gmarshal.c:978
  [Error: gmarshal.c was not found in source tree]
#3  0x00007f4d1f462da6 in _g_closure_invoke_va (closure=0x56053d023d70, return_value=0x0, instance=0x56053d1eac00, args=0x7ffccf1976b0, n_params=1, param_types=0x56053bddaa30) at ../../../../gobject/gclosure.c:873
  [Error: gclosure.c was not found in source tree]
#4  0x00007f4d1f47e961 in g_signal_emit_valist (instance=0x56053d1eac00, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffccf1976b0) at ../../../../gobject/gsignal.c:3300
  [Error: gsignal.c was not found in source tree]
#5  0x00007f4d1f47eecf in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at ../../../../gobject/gsignal.c:3447
  [Error: gsignal.c was not found in source tree]
#6  0x00007f4d1f462b6d in g_closure_invoke (closure=0x56053d5b1e20, return_value=0x0, n_param_values=1, param_values=0x7ffccf197950, invocation_hint=0x7ffccf1978d0) at ../../../../gobject/gclosure.c:810
  [Error: gclosure.c was not found in source tree]
#7  0x00007f4d1f4758f3 in signal_emit_unlocked_R (node=node@entry=0x56053c18be80, detail=detail@entry=0, instance=instance@entry=0x56053dafaa40, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7ffccf197950) at ../../../../gobject/gsignal.c:3635
  [Error: gsignal.c was not found in source tree]
#8  0x00007f4d1f47e882 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffccf197b00) at ../../../../gobject/gsignal.c:3391
  [Error: gsignal.c was not found in source tree]
#9  0x00007f4d1f47eecf in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at ../../../../gobject/gsignal.c:3447
  [Error: gsignal.c was not found in source tree]
#10 0x00007f4d1ed285ad in gtk_button_do_release (button=0x56053dafaa40, emit_clicked=<optimized out>) at ../../../../gtk/gtkbutton.c:1845
  [Error: gtkbutton.c was not found in source tree]
#11 0x00007f4d1ed28615 in gtk_real_button_released (button=0x56053dafaa40) at ../../../../gtk/gtkbutton.c:1963
  [Error: gtkbutton.c was not found in source tree]
#12 0x00007f4d1f462da6 in _g_closure_invoke_va (closure=0x56053c18bd70, return_value=0x0, instance=0x56053dafaa40, args=0x7ffccf197e60, n_params=0, param_types=0x0) at ../../../../gobject/gclosure.c:873
  [Error: gclosure.c was not found in source tree]
#13 0x00007f4d1f47e961 in g_signal_emit_valist (instance=0x56053dafaa40, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffccf197e60) at ../../../../gobject/gsignal.c:3300
  [Error: gsignal.c was not found in source tree]
#14 0x00007f4d1f47eecf in g_signal_emit (instance=instance@entry=0x56053dafaa40, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
  [Error: gsignal.c was not found in source tree]
#15 0x00007f4d1ed26b20 in multipress_released_cb (gesture=0x56053d39f6b0, n_press=<optimized out>, x=<optimized out>, y=<optimized out>, widget=0x56053dafaa40) at ../../../../gtk/gtkbutton.c:666
  [Error: gtkbutton.c was not found in source tree]
#16 0x00007f4d1c3dedae in ffi_call_unix64 () at ../src/x86/unix64.S:76
  [Error: unix64.S was not found in source tree]
#17 0x00007f4d1c3de71f in ffi_call (cif=cif@entry=0x7ffccf198170, fn=fn@entry=0x7f4d1ed26b00 <multipress_released_cb>, rvalue=<optimized out>, avalue=avalue@entry=0x7ffccf198080) at ../src/x86/ffi64.c:525
  [Error: ffi64.c was not found in source tree]
#18 0x00007f4d1f4637e6 in g_cclosure_marshal_generic_va (closure=0x56053d0f1790, return_value=0x0, instance=<optimized out>, args_list=<optimized out>, marshal_data=<optimized out>, n_params=3, param_types=0x56053c194930) at ../../../../gobject/gclosure.c:1610
  [Error: gclosure.c was not found in source tree]
#19 0x00007f4d1f462da6 in _g_closure_invoke_va (closure=0x56053d0f1790, return_value=0x0, instance=0x56053d39f6b0, args=0x7ffccf198410, n_params=3, param_types=0x56053c194930) at ../../../../gobject/gclosure.c:873
  [Error: gclosure.c was not found in source tree]
#20 0x00007f4d1f47e961 in g_signal_emit_valist (instance=0x56053d39f6b0, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffccf198410) at ../../../../gobject/gsignal.c:3300
  [Error: gsignal.c was not found in source tree]
#21 0x00007f4d1f47eecf in g_signal_emit (instance=instance@entry=0x56053d39f6b0, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
  [Error: gsignal.c was not found in source tree]
#22 0x00007f4d1edead64 in gtk_gesture_multi_press_end (gesture=0x56053d39f6b0, sequence=<optimized out>) at ../../../../gtk/gtkgesturemultipress.c:286
  [Error: gtkgesturemultipress.c was not found in source tree]
#23 0x00007f4d1f465ba2 in g_cclosure_marshal_VOID__BOXEDv (closure=0x56053c195f00, return_value=<optimized out>, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0x56053c195f30) at ../../../../gobject/gmarshal.c:1950
  [Error: gmarshal.c was not found in source tree]
#24 0x00007f4d1f462da6 in _g_closure_invoke_va (closure=0x56053c195f00, return_value=0x0, instance=0x56053d39f6b0, args=0x7ffccf1987c0, n_params=1, param_types=0x56053c195f30) at ../../../../gobject/gclosure.c:873
  [Error: gclosure.c was not found in source tree]
#25 0x00007f4d1f47e961 in g_signal_emit_valist (instance=0x56053d39f6b0, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffccf1987c0) at ../../../../gobject/gsignal.c:3300
  [Error: gsignal.c was not found in source tree]
#26 0x00007f4d1f47eecf in g_signal_emit (instance=instance@entry=0x56053d39f6b0, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
  [Error: gsignal.c was not found in source tree]
#27 0x00007f4d1ede7f32 in _gtk_gesture_set_recognized (sequence=0x0, recognized=0, gesture=0x56053d39f6b0) at ../../../../gtk/gtkgesture.c:345
  [Error: gtkgesture.c was not found in source tree]
#28 _gtk_gesture_check_recognized (gesture=gesture@entry=0x56053d39f6b0, sequence=sequence@entry=0x0) at ../../../../gtk/gtkgesture.c:386
  [Error: gtkgesture.c was not found in source tree]
#29 0x00007f4d1ede950b in gtk_gesture_handle_event (controller=0x56053d39f6b0, event=0x56053d7993e0) at ../../../../gtk/gtkgesture.c:814
  [Error: gtkgesture.c was not found in source tree]
#30 0x00007f4d1edec306 in gtk_gesture_single_handle_event (controller=0x56053d39f6b0, event=0x56053d7993e0) at ../../../../gtk/gtkgesturesingle.c:222
  [Error: gtkgesturesingle.c was not found in source tree]
#31 0x00007f4d1edb4fb5 in gtk_event_controller_handle_event (controller=0x56053d39f6b0, event=event@entry=0x56053d7993e0) at ../../../../gtk/gtkeventcontroller.c:230
  [Error: gtkeventcontroller.c was not found in source tree]
#32 0x00007f4d1ef6ecbb in _gtk_widget_run_controllers (widget=0x56053dafaa40, event=0x56053d7993e0, phase=GTK_PHASE_BUBBLE) at ../../../../gtk/gtkwidget.c:7379
  [Error: gtkwidget.c was not found in source tree]
#33 0x00007f4d1efc33c4 in _gtk_marshal_BOOLEAN__BOXEDv (closure=0x56053bc3a330, return_value=0x7ffccf198b60, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0x56053bc3a360) at ../../../../gtk/gtkmarshalers.c:129
  [Error: gtkmarshalers.c was not found in source tree]
#34 0x00007f4d1f462da6 in _g_closure_invoke_va (closure=0x56053bc3a330, return_value=0x7ffccf198b60, instance=0x56053dafaa40, args=0x7ffccf198c30, n_params=1, param_types=0x56053bc3a360) at ../../../../gobject/gclosure.c:873
  [Error: gclosure.c was not found in source tree]
#35 0x00007f4d1f47e32b in g_signal_emit_valist (instance=0x56053dafaa40, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7ffccf198c30) at ../../../../gobject/gsignal.c:3300
  [Error: gsignal.c was not found in source tree]
#36 0x00007f4d1f47eecf in g_signal_emit (instance=instance@entry=0x56053dafaa40, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
  [Error: gsignal.c was not found in source tree]
#37 0x00007f4d1ef70f54 in gtk_widget_event_internal (widget=widget@entry=0x56053dafaa40, event=event@entry=0x56053d7993e0) at ../../../../gtk/gtkwidget.c:7744
  [Error: gtkwidget.c was not found in source tree]
#38 0x00007f4d1ef7306a in gtk_widget_event (widget=widget@entry=0x56053dafaa40, event=event@entry=0x56053d7993e0) at ../../../../gtk/gtkwidget.c:7314
  [Error: gtkwidget.c was not found in source tree]
#39 0x00007f4d1ee314e6 in propagate_event_up (topmost=<optimized out>, event=<optimized out>, widget=0x56053dafaa40) at ../../../../gtk/gtkmain.c:2592
  [Error: gtkmain.c was not found in source tree]
#40 propagate_event (widget=<optimized out>, event=0x56053d7993e0, captured=<optimized out>, topmost=0x0) at ../../../../gtk/gtkmain.c:2695
  [Error: gtkmain.c was not found in source tree]
#41 0x00007f4d1ee33603 in gtk_main_do_event (event=<optimized out>) at ../../../../gtk/gtkmain.c:1915
  [Error: gtkmain.c was not found in source tree]
#42 0x00007f4d1eb342a5 in _gdk_event_emit (event=event@entry=0x56053d7993e0) at ../../../../gdk/gdkevents.c:73
  [Error: gdkevents.c was not found in source tree]
#43 0x00007f4d1eb64d22 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at ../../../../../gdk/x11/gdkeventsource.c:367
  [Error: gdkeventsource.c was not found in source tree]
#44 0x00007f4d1f382c3e in g_main_dispatch (context=0x56053bc22990) at ../../../../glib/gmain.c:3182
  [Error: gmain.c was not found in source tree]
#45 g_main_context_dispatch (context=context@entry=0x56053bc22990) at ../../../../glib/gmain.c:3847
  [Error: gmain.c was not found in source tree]
#46 0x00007f4d1f382ed8 in g_main_context_iterate (context=context@entry=0x56053bc22990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3920
  [Error: gmain.c was not found in source tree]
#47 0x00007f4d1f382f6c in g_main_context_iteration (context=context@entry=0x56053bc22990, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3981
  [Error: gmain.c was not found in source tree]
#48 0x00007f4d1f54913d in g_application_run (application=0x56053becd320, argc=<optimized out>, argv=0x7ffccf1990a8) at ../../../../gio/gapplication.c:2470
  [Error: gapplication.c was not found in source tree]
#49 0x0000560539d6fd51 in main (argc=<optimized out>, argv=<optimized out>) at ../shell/main.c:57
  52:   cheese_gtk_init (&argc, &argv);
  53: #endif /* HAVE_CHEESE */
  54: 
  55:   application = cc_application_new ();
  56: 
  57:   return g_application_run (G_APPLICATION (application), argc, argv);
  58: }