This error indicates that you had unofficial library packages installed from a (probably no-longer-configured) ppa. Allowing the system to downgrade these library packages eliminates the problem of version skew. You should now be able to upgrade to the raring version of ia32-libs without problem.
** Changed in: ia32-libs (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1222123 Title: ia32-libs is not installable on Ubuntu 13.04 due to unmet dependencies (ia32-libs-multiarch) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ia32-libs/+bug/1222123/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs