$libreoffice --safe-mode (soffice:95276): dbind-WARNING **: 20:54:24.095: AT-SPI: Error retrieving accessibility bus address: org.a11y.Bus.Error: Failed to execute child process “/usr/bin/dbus-broker-launch” (No such file or directory) (soffice:95276): GLib-GObject-CRITICAL **: 20:54:49.151: invalid (NULL) pointer instance (soffice:95276): GLib-GObject-CRITICAL **: 20:54:49.151: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed $gnome-calculator (gnome-calculator:95296): Gtk-WARNING **: 20:55:00.217: Unable to acquire the address of the accessibility bus: GDBus.Error:org.a11y.Bus.Error: Failed to execute child process “/usr/bin/dbus-broker-launch” (No such file or directory). If you are attempting to run GTK without a11y support, GTK_A11Y should be set to 'none'.