According to numerous people on the steam page, this bug is also present in Ubuntu 14.04.
http://steamcommunity.com/discussions/forum/1/541906989397659261/?tscn=1437755858#p2 ** Also affects: ubuntu Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1478030 Title: Mint Upgrade Manager - Crash at start: No package header, cache->open failed To manage notifications about this bug go to: https://bugs.launchpad.net/linuxmint/+bug/1478030/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs