abrt 1.1.1 detected a crash.

architecture: i686
cmdline: /usr/bin/python /usr/bin/gummi
component: gummi
executable: /usr/bin/gummi
kernel: 2.6.32.16-150.fc12.i686
package: gummi-0.4.5-1.fc12
reason: Importer.py:79:prepare_image:TypeError: GtkEntry.set_text() argument 1 must be string, not None
release: Fedora release 12 (Constantine)

backtrace
-----
Importer.py:79:prepare_image:TypeError: GtkEntry.set_text() argument 1 must be string, not None

Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/gummi/GummiGUI.py", line 322, in on_image_file_activate
    self.importgui.choose_imagefile()
  File "/usr/lib/python2.6/site-packages/gummi/GummiGUI.py", line 645, in choose_imagefile
    self.importer.prepare_image()
  File "/usr/lib/python2.6/site-packages/gummi/Importer.py", line 79, in prepare_image
    self.image_file.set_text(imagefile)
TypeError: GtkEntry.set_text() argument 1 must be string, not None

Local variables in innermost frame:
imagefile: None
self: <gummi.Importer.Importer instance at 0x8bd86ec>
chooser: <gtk.FileChooserDialog object at 0x8bea07c (GtkFileChooserDialog at 0x8ddf828)>
response: -6
imagefilter: <gtk.FileFilter object at 0x8bea57c (GtkFileFilter at 0x8e664a0)>