Seems I had the same issue! Apt-get can not connect to restricted stores and dies on last part.
** Attachment added: "Problem report for Gnome-app-install" http://librarian.launchpad.net/5429276/_usr_bin_gnome-app-install.1000.crash -- /var/crash/_usr_bin_gnome-app-install.1000.crash https://launchpad.net/bugs/74773 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
