Installer Crashed at Step 6 0f 7

Hardware: Dell Optiplex GX620
RAM: 2GB
Processor: Intel P4 HT

Binary package hint: ubiquity

ubuntu@ubuntu:~$ sudo ubiquity

Feb 1 03:37:54 ubiquity: Starting up '['log-output', '-t', 'ubiquity', '--pass-stdout', '/usr/lib/ubiquity/localechooser/localechooser']' for ubiquity.components.language.Language
Feb 1 03:37:54 ubiquity: Watching for question patterns ^languagechooser/language-name, ^countrychooser/shortlist$
Feb 1 03:37:59 ubiquity: Starting up '['log-output', '-t', 'ubiquity', '--pass-stdout', '/usr/share/ubiquity/tzsetup']' for ubiquity.components.timezone.Timezone
Feb 1 03:37:59 ubiquity: Watching for question patterns ^time/zone$
Feb 1 03:38:03 ubiquity: Starting up '['log-output', '-t', 'ubiquity', '--pass-stdout', '/usr/lib/ubiquity/console-setup/console-setup.postinst', 'configure']' for ubiquity.components.console_setup.ConsoleSetup
Feb 1 03:38:03 ubiquity: Watching for question patterns ^console-setup/layout, ^console-setup/variant
Feb 1 03:38:03 ubiquity: Setting keyboard layout: pc105 us []
Feb 1 03:38:05 ubiquity: Starting up '['log-output', '-t', 'ubiquity', '--pass-stdout', '/usr/lib/ubiquity/user-setup/user-setup-ask', '/target']' for ubiquity.components.usersetup.UserSetup
Feb 1 03:38:05 ubiquity: Watching for question patterns ^passwd/user-fullname$, ^passwd/username$, ^passwd/user-password$, ^passwd/user-password-again$, ERROR
Feb 1 03:38:15 ubiquity: Starting up '['log-output', '-t', 'ubiquity', '--pass-stdout', '/bin/partman']' for ubiquity.components.partman_auto.PartmanAuto
Feb 1 03:38:15 ubiquity: Watching for question patterns ^partman-auto/.*automatically_partition$, ^partman-auto/select_disk$, ^partman-partitioning/new_size$, ^partman/choose_partition$, ^partman/confirm.*, type:boolean, ERROR, PROGRESS
Exception in GTK frontend (invoking crash handler):
Traceback (most recent call last):
  File "/usr/lib/ubiquity/bin/ubiquity", line 185, in ?
    main()
  File "/usr/lib/ubiquity/bin/ubiquity", line 182, in main
    install()
  File "/usr/lib/ubiquity/bin/ubiquity", line 56, in install
    ret = wizard.run()
  File "/usr/lib/ubiquity/ubiquity/frontend/gtkui.py", line 310, in run
    self.process_step()
  File "/usr/lib/ubiquity/ubiquity/frontend/gtkui.py", line 867, in process_step
    self.process_autopartitioning()
  File "/usr/lib/ubiquity/ubiquity/frontend/gtkui.py", line 922, in process_autopartitioning
    choice = self.get_autopartition_choice()[0]
  File "/usr/lib/ubiquity/ubiquity/frontend/gtkui.py", line 1620, in get_autopartition_choice
    raise AssertionError, "no active autopartitioning choice"
AssertionError: no active autopartitioning choice