#0  g_menu_model_get_n_items (model=0x0) at ../../../../gio/gmenumodel.c:494
  [Error: gmenumodel.c was not found in source tree]
#1  0x00007fa29407d69e in gtk_application_window_update_shell_shows_app_menu (window=0x55b0b07da470, settings=<optimized out>) at ././gtk/gtkapplicationwindow.c:316
  [Error: gtkapplicationwindow.c was not found in source tree]
#2  0x00007fa29407d86a in gtk_application_window_real_realize (widget=0x55b0b07da470) at ././gtk/gtkapplicationwindow.c:683
  [Error: gtkapplicationwindow.c was not found in source tree]
#3  0x00007fa2918411d6 in _g_closure_invoke_va (closure=0x55b0b05af980, return_value=0x0, instance=0x55b0b07da470, args=0x7fff28ea8670, n_params=0, param_types=0x0) at ../../../../gobject/gclosure.c:867
  [Error: gclosure.c was not found in source tree]
#4  0x00007fa29185c79f in g_signal_emit_valist (instance=0x55b0b07da470, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fff28ea8670) at ../../../../gobject/gsignal.c:3300
  [Error: gsignal.c was not found in source tree]
#5  0x00007fa29185cecf in g_signal_emit (instance=instance@entry=0x55b0b07da470, signal_id=<optimized out>, detail=detail@entry=0) at ../../../../gobject/gsignal.c:3447
  [Error: gsignal.c was not found in source tree]
#6  0x00007fa2942f7826 in gtk_widget_realize (widget=0x55b0b07da470) at ././gtk/gtkwidget.c:5461
  [Error: gtkwidget.c was not found in source tree]
#7  0x00007fa2942f7a45 in gtk_widget_realize (widget=0x55b0b05f6e30) at ././gtk/gtkwidget.c:5455
  [Error: gtkwidget.c was not found in source tree]
#8  0x00007fa2942f7a45 in gtk_widget_realize (widget=0x55b0b07f1300) at ././gtk/gtkwidget.c:5455
  [Error: gtkwidget.c was not found in source tree]
#9  0x00007fa2942f7a45 in gtk_widget_realize (widget=0x55b0b07fa230) at ././gtk/gtkwidget.c:5455
  [Error: gtkwidget.c was not found in source tree]
#10 0x00007fa2942f7a45 in gtk_widget_realize (widget=0x55b0b07f80f0) at ././gtk/gtkwidget.c:5455
  [Error: gtkwidget.c was not found in source tree]
#11 0x000055b0afd27884 in single_photo_page_set_pixbuf (self=0x55b0b07f1300, unscaled=unscaled@entry=0x55b0b092ca40, max_dim=max_dim@entry=0x7fff28ea8a60, direction=direction@entry=0x0) at ./src/Page.vala:2175
  2170:         this.max_dim = max_dim;
  2171:         this.old_scaled = scaled;
  2172:         scaled = null;
  2173:         
  2174:         // need to make sure this has happened
  2175:         canvas.realize();
  2176:         
  2177:         repaint(direction);
  2178:     }
  2179:     
  2180:     public void blank_display() {
#12 0x000055b0afd08c2d in editing_host_page_update_pixbuf (self=0x55b0b07f1300) at ./src/PhotoPage.vala:1304
  1299:             if (pixbuf == null)
  1300:                 cache.prefetch(photo);
  1301:         }
  1302:     
  1303:         if (!photo_missing && pixbuf != null) {
  1304:             set_pixbuf(pixbuf, max_dim);
  1305:             pixbuf_dirty = false;
  1306:         }
  1307:         
  1308: #if MEASURE_PIPELINE
  1309:         debug("UPDATE_PIXBUF: total=%lf", timer.elapsed());
#13 0x000055b0afd1e920 in page_check_configure_halted (self=0x55b0b07f1300) at ./src/Page.vala:995
   990:         
   991:         if (report_move_finished)
   992:             on_move_finished((Gdk.Rectangle) allocation);
   993:         
   994:         if (report_resize_finished)
   995:             on_resize_finished((Gdk.Rectangle) allocation);
   996:         
   997:         last_configure_ms = 0;
   998:         report_move_finished = false;
   999:         report_resize_finished = false;
  1000:         
#14 _page_check_configure_halted_gsource_func (self=0x55b0b07f1300, self@entry=<error reading variable: value has been optimized out>) at Page.c:6842
  6837: }
  6838: 
  6839: 
  6840: static gboolean _page_check_configure_halted_gsource_func (gpointer self) {
  6841: 	gboolean result;
  6842: 	result = page_check_configure_halted ((Page*) self);
  6843: #line 966 "/home/jens/Source/shotwell/src/Page.vala"
  6844: 	return result;
  6845: #line 6846 "Page.c"
  6846: }
  6847: 
#15 0x00007fa2915688a3 in g_timeout_dispatch (source=source@entry=0x55b0b0983aa0, callback=<optimized out>, user_data=<optimized out>) at ../../../../glib/gmain.c:4633
  [Error: gmain.c was not found in source tree]
#16 0x00007fa291567e25 in g_main_dispatch (context=0x55b0b054b000) at ../../../../glib/gmain.c:3148
  [Error: gmain.c was not found in source tree]
#17 g_main_context_dispatch (context=context@entry=0x55b0b054b000) at ../../../../glib/gmain.c:3813
  [Error: gmain.c was not found in source tree]
#18 0x00007fa2915681f0 in g_main_context_iterate (context=context@entry=0x55b0b054b000, block=block@entry=0, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3886
  [Error: gmain.c was not found in source tree]
#19 0x00007fa29156827c in g_main_context_iteration (context=context@entry=0x55b0b054b000, may_block=may_block@entry=0) at ../../../../glib/gmain.c:3947
  [Error: gmain.c was not found in source tree]
#20 0x00007fa291b25cba in g_application_run (application=0x55b0b054a290, argc=argc@entry=0, argv=argv@entry=0x0) at ../../../../gio/gapplication.c:2425
  [Error: gapplication.c was not found in source tree]
#21 0x000055b0afdece7a in application_start (self=0x55b0b05cb460, argv=0x0, argv_length1=0) at ./src/Application.vala:182
  177: 
  178:         starting();
  179: 
  180:         assert(AppWindow.get_instance() != null);
  181:         system_app.add_window(AppWindow.get_instance());
  182:         system_app_run_retval = system_app.run(argv);
  183: 
  184:         if (!direct) {
  185:             system_app.command_line.disconnect(on_command_line);
  186:         }
  187: 
#22 0x000055b0afce3912 in editing_exec (filename=<optimized out>) at ./src/main.vala:271
  266:     DirectWindow direct_window = new DirectWindow(initial_file);
  267:     direct_window.show_all();
  268:     
  269:     debug("%lf seconds to Gtk.main()", startup_timer.elapsed());
  270:     
  271:     Application.get_instance().start();
  272:     
  273:     DesktopIntegration.terminate();
  274:     
  275:     // terminate units for direct-edit mode
  276:     Direct.app_terminate();
#23 0x000055b0afce3e98 in _vala_main (args=<optimized out>, args_length1=<optimized out>) at ./src/main.vala:429
  424:     // mount list), or for nothing to be on the command-line at all, only go to direct editing if a
  425:     // filename is spec'd
  426:     if (is_string_empty(filename))
  427:         library_exec(mounts);
  428:     else
  429:         editing_exec(filename);
  430:     
  431:     // terminate mode-inspecific modules
  432:     Resources.terminate();
  433:     Application.terminate();
  434:     Debug.terminate();
#24 0x000055b0afbdc8b0 in main (argc=<optimized out>, argv=<optimized out>) at ./src/main.vala:316
  311:     return entries;
  312: }
  313: 
  314: }
  315: 
  316: void main(string[] args) {
  317:     // Call AppDirs init *before* calling Gtk.init_with_args, as it will strip the
  318:     // exec file from the array
  319:     AppDirs.init(args[0]);
  320: 
  321:     // This has to be done before the AppWindow is created in order to ensure the XMP