UnicodeDecodeError: 'ascii' codec can't decode byte because of non unicode UnreportableReason

[Didier Roche-Tolomelli]

Binary package hint: apport

Getting that traceback because the UnreportableReason is not unicode in french:
UnreportableReason:
 Les versions installées de certains paquets sont obsolètes. Veuillez mettre à jour les paquets suivants, puis vérifier si le problème est toujours présent :

 libavahi-client3, libavahi-common-data, libavahi-common3, libcups2, libindicator1, libpango1.0-0, libpango1.0-common, linux-headers-generic, linux-libc-dev

The trackeback is:

Traceback (most recent call last):
  File "/usr/share/apport/apport-gtk", line 353, in <module>
    app.run_argv()
  File "/usr/lib/python2.6/dist-packages/apport/ui.py", line 571, in run_argv
    self.run_crash(self.options.crash_file, False)
  File "/usr/lib/python2.6/dist-packages/apport/ui.py", line 283, in run_crash
    self.report['UnreportableReason'])

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: apport 1.16-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.37-7.19-generic 2.6.37-rc3
Uname: Linux 2.6.37-7-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Tue Dec 7 15:19:52 2010
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha i386 (20100918)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, user)
 LANG=fr_FR.utf8
 SHELL=/bin/bash
SourcePackage: apport