Marking invalid based on the comments, the only relevant ppa is https://launchpad.net/~ubuntu-sdk-team/+archive/ubuntu/ppa
** Changed in: canonical-developer-experience 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/1530756 Title: Failing to upgrade Ubuntu SDK on Vivid system (15.04) To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-developer-experience/+bug/1530756/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs