Here is the error:
E: The package libpam-systemd needs to be reinstalled, but I can't find an archive for it.
When I try to update Ubuntu 14.04, I receive the following pop-up windows:
Could not initialize the package information An unresolvable problem occurred while initializing the package information.
Please report this bug against the 'update-manager' package and include the following error message: E:The package libpam-systemd needs to be reinstalled, but I can't find an archive for it."
I reviewed the following post: The package libpam-systemd needs to be reinstalled
When I attempted to input sudo apt-get install aptitude
into Terminal, I received the exact same error message.
Per request, full verbatim results from Terminal: https://paste.ubuntu.com/25399467/