I am short on time now, sorry. Please have a look at bug 24626, there is a way out. Basically you have to edit your APT configuration and add a larger cache size.
-- cannot upgrade xfce https://bugs.launchpad.net/bugs/218022 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
