Traceback (most recent call last):
  File "/usr/bin/gdebi-gtk", line 53, in <module>
    app = GDebi(datadir=data,options=options,file=args[0])
  File "/usr/lib/python2.5/site-packages/GDebi/GDebi.py", line 68, in __init__
    logo=icons.load_icon("gnome-mime-application-x-deb", 48, 0)
GError: Icon 'gnome-mime-application-x-deb' not present in theme