Ubiquity 2.21.63.3
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: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()
Could not translate page (prepare): 'NoneType' object has no attribute 'replace'
debconf: DbDriver "passwords" warning: could not open /var/cache/debconf/passwords.dat: Permission denied
No such schema 'org.gnome.settings-daemon.plugins.media-keys'
No such schema 'org.mate.SettingsDaemon.plugins.media-keys'
No such schema 'org.gnome.settings-daemon.plugins.power'
No such schema 'org.gnome.nautilus.desktop'
Exception caught in process_line:
Traceback (most recent call last):
  File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 1770, in description
    return self.description_cache[question]
KeyError: 'partman/progress/init/parted'

During handling of the above exception, another exception occurred:

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 374, in process_line
    progress_info):
  File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 3325, in progress_info
    self.ui.progress_info(self.description(progress_info))
  File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 1772, in description
    description = plugin.Plugin.description(self, question)
  File "/usr/lib/ubiquity/ubiquity/filteredcommand.py", line 324, in description
    return misc.utf8(self.db.metaget(question, 'description'),
  File "/usr/lib/python3/dist-packages/debconf.py", line 62, in <lambda>
    lambda *args, **kw: self.command(command, *args, **kw))
  File "/usr/lib/python3/dist-packages/debconf.py", line 66, in command
    self.write.write("%s %s\n" % (command, ' '.join(map(str, params))))
ValueError: I/O operation on closed file.
Ubiquity 2.21.63.3
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: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/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:4412): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:4412): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:4412): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:4412): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:4412): 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:4412): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:4412): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:4412): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:4412): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:4412): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed

(ubiquity:4412): Gtk-CRITICAL **: gtk_widget_set_allocation: assertion '_gtk_widget_get_visible (widget) || _gtk_widget_is_toplevel (widget)' failed
/usr/lib/ubiquity/ubiquity/frontend/gtk_components/nmwidgets.py:18: Warning: Source ID 893 was not found when attempting to remove it
  GLib.source_remove(self.timeout_id)
/usr/lib/ubiquity/ubiquity/frontend/gtk_components/nmwidgets.py:131: Warning: Source ID 932 was not found when attempting to remove it
  GLib.source_remove(self.rows_changed_id)
No such schema 'com.canonical.indicator.session'
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
/usr/lib/ubiquity/plugins/ubi-console-setup.py:72: Warning: Source ID 7977 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 7980 was not found when attempting to remove it
  GLib.source_remove(self.keyboard_variant_timeout_id)
/usr/lib/ubiquity/plugins/ubi-usersetup.py:394: Warning: Source ID 9494 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 9536 was not found when attempting to remove it
  GLib.source_remove(self.hostname_timeout_id)
/usr/lib/ubiquity/ubiquity/frontend/gtk_components/nmwidgets.py:18: Warning: Source ID 5451 was not found when attempting to remove it
  GLib.source_remove(self.timeout_id)
/usr/lib/ubiquity/ubiquity/frontend/gtk_components/nmwidgets.py:131: Warning: Source ID 5488 was not found when attempting to remove it
  GLib.source_remove(self.rows_changed_id)
Gtk-Message: Failed to load module "overlay-scrollbar"
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.
/usr/lib/ubiquity/ubiquity/frontend/gtk_components/nmwidgets.py:18: Warning: Source ID 9879 was not found when attempting to remove it
  GLib.source_remove(self.timeout_id)
/usr/lib/ubiquity/ubiquity/frontend/gtk_components/nmwidgets.py:131: Warning: Source ID 9933 was not found when attempting to remove it
  GLib.source_remove(self.rows_changed_id)