Eu não consigo usar o novo centro de software, nada será instalado. Eu tentei instalar versões antigas usando o terminal, mas isso aparece:
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
libpam-systemd : Depends: systemd (= 229-4ubuntu19)
software-center : Depends: software-center-aptdaemon-plugins but it is not going to be installed
Depends: gir1.2-gmenu-3.0 (>= 3.1.5) but it is not going to be installed
Depends: python-xapian
Depends: python-apt (>= 0.8.3ubuntu4) but it is not going to be installed
Depends: python-aptdaemon (>= 0.40) but it is not going to be installed
Depends: python-aptdaemon.gtk3widgets but it is not going to be installed
Depends: python-dbus but it is not going to be installed
Depends: python-defer but it is not going to be installed
Depends: python-xdg but it is not going to be installed
Depends: ubuntu-sso-client but it is not going to be installed
Depends: python-piston-mini-client (>= 0.1+bzr29) but it is not going to be installed
Depends: oneconf (>= 0.2.6) but it is not going to be installed
Depends: python-oneconf (>= 0.3) but it is not going to be installed or
oneconf (< 0.3) but it is not going to be installed
Depends: python-debtagshw but it is not going to be installed
Recommends: apt-xapian-index (>= 0.38ubuntu1) but it is not going to be installed
systemd : Depends: libsystemd0 (= 229-4ubuntu17) but 229-4ubuntu19 is to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
O código que eu usei foi "sudo apt-get install software-center"