This doesn't appear to be a problem with "twisted (Ubuntu)". More likely it is a hardware failure - either hard drive, memory, or network card. Some part of the installation tool chain should probably be checking a checksum of some sort (although if you have bad memory, your data might pass a checksum check and *then* be corrupted causing a problem like this).
** Package changed: twisted (Ubuntu) => software-center (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/941269 Title: package software-center 5.1.9 failed to install/upgrade: ErrorMessage: dependency problems - leaving unconfigured To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-center/+bug/941269/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs