user5@system:/var/cache/apt/archives$ sudo apt update && sudo apt upgrade
Hit:1 http://us.archive.ubuntu.com/ubuntu xenial InRelease
Hit:2 http://us.archive.ubuntu.com/ubuntu xenial-updates InRelease                            
Hit:3 http://security.ubuntu.com/ubuntu xenial-security InRelease                             
Hit:4 http://archive.ubuntu.com/ubuntu xenial InRelease                                       
Hit:5 http://us.archive.ubuntu.com/ubuntu xenial-backports InRelease    
Reading package lists... Done                     
Building dependency tree       
Reading state information... Done
85 packages can be upgraded. Run 'apt list --upgradable' to see them.
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:
 emacs24 : Depends: emacs24-bin-common (= 24.5+1-6ubuntu1) but 24.5+1-6ubuntu1.1 is installed
E: Unmet dependencies. Try using -f.