gdebi-gtk crashed with RuntimeError in on_window_main_delete_event()

[Leo]

Binary package hint: gdebi

I have this error when I try to update ClamTk 4.08

ProblemType: Crash
Architecture: i386
DistroRelease: /usr/bin/lsb_release:81: DeprecationWarning: the sets module is deprecated import sets Ubuntu 9.04
ExecutablePath: /usr/bin/gdebi-gtk
InterpreterPath: /usr/bin/python2.6
NonfreeKernelModules: nvidia
Package: gdebi 0.4.3
PackageArchitecture: all
ProcAttrCurrent: unconfined
ProcCmdline: /usr/bin/python /usr/bin/gdebi-gtk --non-interactive /home/leo/Escritorio/avast4workstation_1.3.0-2_i386.deb
ProcEnviron:
 PATH=(custom, no user)
 LANG=gl_ES.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/gdebi-gtk', '--non-interactive', '/home/leo/Escritorio/avast4workstation_1.3.0-2_i386.deb']
SourcePackage: gdebi
Title: gdebi-gtk crashed with RuntimeError in on_window_main_delete_event()
Traceback:
 Traceback (most recent call last):
   File "/usr/lib/python2.6/dist-packages/GDebi/GDebi.py", line 475, in on_window_main_delete_event
     gtk.main_quit()
 RuntimeError: called outside of a mainloop
Uname: Linux 2.6.28-8-generic i686
UserGroups: