I installed proposed packagekit and have not seen the problem since. I reloaded the cache several times, both in the same and different sessions (and even different logons). Thank you.
-- E: The package cache file is corrupted E: _cache->open() failed, please report. https://bugs.launchpad.net/bugs/257639 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
