I'm using Ubuntu 12.10. Yesterday I noticed that software-properties-gtk does not work anymore. I have no idea why and what to do. When I start via Terminal I get the following output:
chocobai@pfubuntu:~$ software-properties-gtk
gpg: /tmp/tmpgkhlnl/trustdb.gpg: trust-db erzeugt
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 162, in packages_for_modalias
cache_map = packages_for_modalias.cache_maps[apt_cache_hash]
KeyError: 4726621
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/bin/software-properties-gtk", line 103, in <module>
app = SoftwarePropertiesGtk(datadir=options.data_dir, options=options, file=file)
File "/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 178, in __init__
self.init_drivers()
File "/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 1097, in init_drivers
self.devices = detect.system_device_drivers()
File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 415, in system_device_drivers
for pkg, pkginfo in system_driver_packages(apt_cache).items():
File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 319, in system_driver_packages
for p in packages_for_modalias(apt_cache, alias):
File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 164, in packages_for_modalias
cache_map = _apt_cache_modalias_map(apt_cache)
File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 129, in _apt_cache_modalias_map
m = package.candidate.record['Modaliases']
File "/usr/lib/python3/dist-packages/apt/package.py", line 429, in record
return Record(self._records.record)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xfc in position 777: invalid start byte
chocobai@pfubuntu:~$
What I want to do is to completely reinstall the proprietary ATI graphic drivers, because the game DungeonDefenders does not start. Also software-properties-gtk is useful to manage repositories.
I thought about to apt-get purge software-properties-gtk but I'm not sure whether this is safe or I'd break something.