The AppStream issue will happen with every error. AppStream would have to run unconditionally, as APT keeps the old files around in case of errors.
I don't see how the spotify thing affects this, that's only a warning. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1562733 Title: apt signature requierements prevent updates from some repositories To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1562733/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
