Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/defer/__init__.py", line 472, in _inline_callbacks
    result = gen.throw(result.type, result.value, result.traceback)
  File "/usr/lib/python2.7/dist-packages/GnomeCodecInstall/PackageWorker.py", line 55, in _perform_action
    list(install), [], list(remove), [], [], [], defer=True)
DBusException: org.freedesktop.DBus.Python.LookupError: Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/defer/__init__.py", line 474, in _inline_callbacks
    result = gen.send(result)
  File "/usr/lib/python2.7/dist-packages/aptdaemon/core.py", line 1053, in _set_property
    self._set_locale(value)
  File "/usr/lib/python2.7/dist-packages/aptdaemon/core.py", line 724, in _set_locale
    (lang, encoding) = locale._parse_localename(locale_str)
  File "/usr/lib/python2.7/locale.py", line 414, in _parse_localename
    code = normalize(localename)
  File "/usr/lib/python2.7/locale.py", line 382, in normalize
    norm_encoding = encodings.normalize_encoding(encoding)
  File "/usr/lib/python2.7/encodings/__init__.py", line 68, in normalize_encoding
    encoding = encoding.encode('latin-1')
LookupError: unknown encoding: latin-1