[linux] You might want to run 'apt-get -f install' to correct these.

참고 : https://forum.level1techs.com/t/can-i-go-ahead-and-downgrade-apt-to-upgrade-apt-utils-ubuntu-server-16-04/118116

우분투에서 뭘 설치하려고 했는데..

root@ip-~~~:~# apt-get upgrade

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:

 apt-utils : Depends: apt (= 1.2.20) but 1.2.24 is installed

E: Unmet dependencies. Try using -f.

이런 에러가 나와서... 찾아보았다.

apt --fix-broken install 

을 치니까 apt-get이 다시 실행됨.