Ubiquity 2.21.63
Gtk-Message: Failed to load module "overlay-scrollbar"
Gtk-Message: Failed to load module "overlay-scrollbar"
/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/plugins/ubi-timezone.py:194: 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
Gtk-Message: Failed to load module "overlay-scrollbar"
Gtk-Message: Failed to load module "overlay-scrollbar"
Gtk-Message: Failed to load module "overlay-scrollbar"
Gtk-Message: Failed to load module "overlay-scrollbar"
update_release_notes_label()
update_release_notes_label()
Could not translate page (prepare): 'NoneType' object has no attribute 'replace'
/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 1578 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 1580 was not found when attempting to remove it
  GLib.source_remove(self.keyboard_variant_timeout_id)
Gtk-Message: Failed to load module "overlay-scrollbar"
Gtk-Message: Failed to load module "overlay-scrollbar"

(process:7989): GLib-CRITICAL **: g_path_get_basename: assertion 'file_name != NULL' failed
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.
Exception caught in process_line:
Traceback (most recent call last):
  File "/usr/lib/ubiquity/ubiquity/filteredcommand.py", line 145, in process_line
    return self.dbfilter.process_line()
  File "/usr/lib/ubiquity/ubiquity/debconffilter.py", line 287, in process_line
    if not input_widgets[0].run(priority, question):
  File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 2693, in run
    self.maybe_update_grub()
  File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 3349, in maybe_update_grub
    grub_bootdev = self.ui.get_grub_choice()
  File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 608, in get_grub_choice
    disk = self.get_current_disk_partman_id()
  File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 416, in get_current_disk_partman_id
    partman_id = self.extra_options['use_device'][1][val][0]
KeyError: 'use_device'