Невозможно установить новое программное обеспечение в 16.04

Я пытаюсь установить новое программное обеспечение в Ubuntu 16.04.
Я не могу установить, но получаю следующую ошибку:

You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
aptitude : Conflicts: aptitude:i386
aptitude:i386 : Depends: libapt-pkg4.12:i386 (>= 0.8.16~exp12ubuntu6) but it is not installable
Depends: libboost-iostreams1.46.1:i386 (>= 1.46.1-1) but it is not installable
Depends: libcwidget3:i386 but it is not installable
Depends: libept1.4.12:i386 but it is not installable
Depends: libncursesw5:i386 (>= 5.6+20070908) but it is not going to be installed
Depends: libsigc++-2.0-0c2a:i386 (>= 2.0.2) but it is not installable
Depends: libxapian22:i386 but it is not installable
Recommends: apt-xapian-index:i386 but it is not installable
Recommends: libparse-debianchangelog-perl:i386 but it is not installable
Conflicts: aptitude
aptitude-common : Breaks: aptitude:i386 (< 0.6.8-1)
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution)

Я пытался apt-get install -f, который также не работает

Ниже появляется ошибка

The following additional packages will be installed:
apt:i386 aptitude:i386 libapt-pkg5.0:i386 libboost-iostreams1.58.0:i386<br>
libbz2-1.0:i386 libcwidget3v5:i386 libgpm2:i386 liblz4-1:i386
libncursesw5:i386 libsigc++-2.0-0v5:i386 libxapian22v5:i386
Suggested packages:
apt-doc:i386 python-apt:i386 apt-xapian-index:i386 aptitude-doc-en:i386
| aptitude-doc:i386 debtags:i386 tasksel:i386 libcwidget-dev:i386 gpm:i386
xapian-tools:i386
Recommended packages:
libparse-debianchangelog-perl:i386
The following packages will be REMOVED:
apt apt-utils ubuntu-minimal unattended-upgrades
The following NEW packages will be installed:
apt:i386 libapt-pkg5.0:i386 libboost-iostreams1.58.0:i386 libbz2-1.0:i386
libcwidget3v5:i386 libgpm2:i386 liblz4-1:i386 libncursesw5:i386
libsigc++-2.0-0v5:i386 libxapian22v5:i386
The following packages will be upgraded:
aptitude:i386
WARNING: The following essential packages will be removed.
This should NOT be done unless you know exactly what you are doing!    apt
1 upgraded, 10 newly installed, 4 to remove and 1 not upgraded.
2 not fully installed or removed.
Need to get 4,480 kB of archives.
After this operation, 5,370 kB of additional disk space will be used.
You are about to do something potentially harmful.
To continue type in the phrase 'Yes, do as I say!'
?] sudo apt autoremove
Abort.

Пожалуйста, помогите мне, как исправить эту ошибку.