Ubiquity 17.04.7
/usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py:53: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gtk, Gdk, GObject, GLib, Atk

(ubiquity:2456): IBUS-WARNING **: The owner of /home/ubuntu/.config/ibus/bus is not root!
/usr/lib/ubiquity/plugins/ubi-timezone.py:195: PyGIWarning: TimezoneMap was imported without specifying a version first. Use gi.require_version('TimezoneMap', '1.0') before import to ensure that the right version gets loaded.
  from gi.repository import TimezoneMap
update_release_notes_label()
Could not translate page (prepare): 'NoneType' object has no attribute 'replace'
update_release_notes_label()
/usr/lib/ubiquity/ubiquity/segmented_bar.py:34: PyGIWarning: PangoCairo was imported without specifying a version first. Use gi.require_version('PangoCairo', '1.0') before import to ensure that the right version gets loaded.
  from gi.repository import GObject, Gdk, Gtk, PangoCairo

(ubiquity:2456): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:2456): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:2456): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:2456): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:2456): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:2456): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:2456): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.

(ubiquity:2456): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:2456): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:2456): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:2456): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed
/usr/lib/ubiquity/plugins/ubi-timezone.py:98: PyGIWarning: Soup was imported without specifying a version first. Use gi.require_version('Soup', '2.4') before import to ensure that the right version gets loaded.
  from gi.repository import Gtk, GObject, GLib, Soup
/usr/lib/ubiquity/plugins/ubi-console-setup.py:72: Warning: Source ID 3047 was not found when attempting to remove it
  GLib.source_remove(self.keyboard_layout_timeout_id)
/usr/lib/ubiquity/plugins/ubi-console-setup.py:74: Warning: Source ID 3051 was not found when attempting to remove it
  GLib.source_remove(self.keyboard_variant_timeout_id)
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.