Ubiquity 18.10.12
/usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py:54: 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, Gio

(ubiquity:1345): IBUS-WARNING **: 10:05:19.735: The owner of /home/ubuntu/.config/ibus/bus is not root!
/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
Failed to play sound: File or data not found
update_release_notes_label()
/usr/lib/ubiquity/ubiquity/misc.py:668: PyGIWarning: Xkl was imported without specifying a version first. Use gi.require_version('Xkl', '1.0') before import to ensure that the right version gets loaded.
  from gi.repository import Xkl, GdkX11
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 605 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 611 was not found when attempting to remove it
  GLib.source_remove(self.keyboard_variant_timeout_id)
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 3349 was not found when attempting to remove it
  GLib.source_remove(self.hostname_timeout_id)

(ubiquity:1345): Gtk-CRITICAL **: 17:14:12.782: gtk_box_gadget_distribute: assertion 'size >= 0' failed in GtkScrollbar