Comment 1 for bug 1487153

Here's the Traceback:

Traceback (most recent call last):
  File "/usr/share/apport/apport-gtk", line 594, in <module>
    app.run_argv()
  File "/usr/lib/python3/dist-packages/apport/ui.py", line 682, in run_argv
    return self.run_crashes()
  File "/usr/lib/python3/dist-packages/apport/ui.py", line 239, in run_crashes
    self.run_crash(f)
  File "/usr/lib/python3/dist-packages/apport/ui.py", line 283, in run_crash
    self.collect_info()
  File "/usr/lib/python3/dist-packages/apport/ui.py", line 1024, in collect_info
    self.ui_pulse_info_collection_progress()
  File "/usr/share/apport/apport-gtk", line 456, in ui_pulse_info_collection_progress
    if self.w('window_information_collection').get_property('visible'):
AttributeError: 'NoneType' object has no attribute 'get_property'