Ubiquity 18.04.3
/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
/usr/lib/ubiquity/ubiquity/frontend/gtk_components/nmwidgets.py:5: PyGIWarning: NM was imported without specifying a version first. Use gi.require_version('NM', '1.0') before import to ensure that the right version gets loaded.
  from gi.repository import NM, NMA
/usr/lib/ubiquity/ubiquity/frontend/gtk_components/nmwidgets.py:5: PyGIWarning: NMA was imported without specifying a version first. Use gi.require_version('NMA', '1.0') before import to ensure that the right version gets loaded.
  from gi.repository import NM, NMA
/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
No such schema “org.gnome.nautilus.desktop”
update_release_notes_label()
update_release_notes_label()
Could not translate page (prepare): 'NoneType' object has no attribute 'replace'
/usr/lib/ubiquity/plugins/ubi-console-setup.py:72: Warning: Source ID 265 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 268 was not found when attempting to remove it
  GLib.source_remove(self.keyboard_variant_timeout_id)
/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:1332): Gtk-CRITICAL **: 00:19:25.671: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:1332): Gtk-CRITICAL **: 00:19:25.672: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:1332): Gtk-CRITICAL **: 00:19:25.673: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed
Gtk-Message: 00:19:38.100: GtkDialog mapped without a transient parent. This is discouraged.

(ubiquity:1332): Gtk-CRITICAL **: 00:20:56.158: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:1332): Gtk-CRITICAL **: 00:20:56.158: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:1332): Gtk-CRITICAL **: 00:20:56.159: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:1332): Gtk-CRITICAL **: 00:20:56.160: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed
Gtk-Message: 00:21:15.581: GtkDialog mapped without a transient parent. This is discouraged.

(ubiquity:1332): Gtk-CRITICAL **: 00:21:36.799: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:1332): Gtk-CRITICAL **: 00:21:36.799: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:1332): Gtk-CRITICAL **: 00:21:36.800: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:1332): Gtk-CRITICAL **: 00:21:36.801: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:1332): Gtk-CRITICAL **: 00:21:36.801: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed
Gtk-Message: 00:21:44.758: GtkDialog mapped without a transient parent. This is discouraged.

(ubiquity:1332): Gtk-CRITICAL **: 00:21:57.982: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:1332): Gtk-CRITICAL **: 00:21:57.983: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:1332): Gtk-CRITICAL **: 00:21:57.984: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:1332): Gtk-CRITICAL **: 00:21:57.984: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:1332): Gtk-CRITICAL **: 00:21:57.985: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed
No such schema “com.canonical.indicator.session”
No such schema “com.canonical.indicator.session”
No such schema “com.canonical.indicator.session”
/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
Ecryptfs is deprecated
Ecryptfs is deprecated
/usr/lib/ubiquity/plugins/ubi-usersetup.py:394: Warning: Source ID 6645 was not found when attempting to remove it
  GLib.source_remove(self.hostname_timeout_id)
/usr/lib/ubiquity/plugins/ubi-usersetup.py:394: Warning: Source ID 6648 was not found when attempting to remove it
  GLib.source_remove(self.hostname_timeout_id)
/usr/lib/ubiquity/plugins/ubi-usersetup.py:394: Warning: Source ID 6659 was not found when attempting to remove it
  GLib.source_remove(self.hostname_timeout_id)
/usr/lib/ubiquity/plugins/ubi-usersetup.py:394: Warning: Source ID 6669 was not found when attempting to remove it
  GLib.source_remove(self.hostname_timeout_id)
/usr/lib/ubiquity/plugins/ubi-usersetup.py:394: Warning: Source ID 6677 was not found when attempting to remove it
  GLib.source_remove(self.hostname_timeout_id)
/usr/lib/ubiquity/plugins/ubi-usersetup.py:394: Warning: Source ID 6691 was not found when attempting to remove it
  GLib.source_remove(self.hostname_timeout_id)
Gtk-Message: 18:27:26.315: GtkDialog mapped without a transient parent. This is discouraged.