It's a problem due to archive.ubuntu.com instead of us.archive.ubuntu.com. It's simply not liking it.
To get around the issue, delete your existing cache, and set the us.archive.ubuntu.com for all references instead of just archive.ubuntu.com. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1358883 Title: Offline Mode fails due to Bad Cache To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt-cacher-ng/+bug/1358883/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs