Comment 7 for bug 1044717

UbiquityDebug.txt has the error:

Exception caught in process_line:
Traceback (most recent call last):
  File "/usr/lib/ubiquity/ubiquity/filteredcommand.py", line 137, in process_line
    return self.dbfilter.process_line()
  File "/usr/lib/ubiquity/ubiquity/debconffilter.py", line 288, in process_line
    if not input_widgets[0].run(priority, question):
  File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 2956, in run
    self.extended_description(question))
  File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 1328, in installation_medium_mounted
    self.part_advanced_warning_hbox.show_all()
AttributeError: 'PageGtk' object has no attribute 'part_advanced_warning_hbox'

(ubiquity:2078): Gdk-CRITICAL **: gdk_error_trap_pop_internal: assertion `trap != NULL' failed