apt remove squid3
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:
cacti : Depends: dbconfig-mysql but it is not going to be installed or
dbconfig-no-thanks but it is not going to be installed
Depends: libapache2-mod-php or
php
Depends: libjs-jquery (>= 1.10) but 1.7.2+dfsg-2ubuntu1 is to be installed
Depends: libjs-jquery-ui-theme-ui-lightness but it is not going to be installed
Depends: php-cli
Depends: php-mbstring
Depends: php-mysql but it is not going to be installed or
php-mysqlnd
Depends: php-snmp
Depends: php-xml
gstreamer1.0-clutter : Depends: libcogl15 (>= 1.15.8) but it is not installable
orage : Depends: libical1 (>= 1.0) but it is not installable
ubuntu-desktop : Depends: unity-control-center but it is not going to be installed
Recommends: fonts-guru but it is not going to be installed
Recommends: fwupd
Recommends: fwupdate
Recommends: fwupdate-signed
Recommends: gedit but it is not going to be installed
Recommends: gnome-calendar but it is not going to be installed
Recommends: gnome-system-monitor but it is not going to be installed
Recommends: gnome-terminal
Recommends: ibus
Recommends: ibus-table but it is not going to be installed
Recommends: nautilus-share but it is not going to be installed
Recommends: printer-driver-brlaser but it is not going to be installed
Recommends: snapd but it is not going to be installed
Recommends: ttf-ancient-fonts-symbola
Recommends: ubuntu-software but it is not going to be installed
Recommends: unity-accessibility-profiles but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).