When I was trying to install Git on Ubuntu 16.04, I get an error. The command I used to install git is:
sudo apt-get install git The error I encountered was:
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: git : Depends: liberror-perl but it is not going to be installed Depends: git-man (> 1:2.7.4) but it is not going to be installed Depends: git-man (< 1:2.7.4-.) but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). Even though I used the suggested command (apt-get -f install) to install git the error still persists. Anyone who has the idea to fix this problem?
62 Answers
Some times our systems may not be up-to-date to receive an install so we can update with:
update package information:
sudo apt-get updateupgrade packages on system and fix broken packages in the process:
sudo apt-get -f dist-upgradeonly fix broken packages:
sudo apt-get -f install
I had the same problem with liberror-perl when trying to install git. The other answers (sudo apt-get update && sudo apt-get dist-upgrade && apt-get -f install) didn't work for me.
From manually following the chain of dependency problems by trying to install each package directly, it looks like the problem is with perl-base:
$ sudo apt install liberror-perl liberror-perl : Depends: perl but it is not going to be installed $ sudo apt install perl perl : Depends: perl-base (= 5.22.1-9) but 5.22.1-9ubuntu0.5 is to be installed $ sudo apt install perl-base perl-base is already the newest version (5.22.1-9ubuntu0.5). So the perl package depends on an outdated version of perl-base. I'm not sure how that was caused, but I suspect at one point a newer version was available, perhaps from a temporary apt source that was later removed on my system. I fixed the problem by downgrading perl-base to the version perl wants:
$ sudo apt install -f perl-base=5.22.1-9 After that, git installs properly. Just in case there was a newer perl-base version available, I tried upgrading it, but the above version was also the latest version:
$ sudo apt install perl-base=\* perl-base is already the newest version (5.22.1-9). Selected version '5.22.1-9' (Ubuntu:16.04/xenial [amd64]) for 'perl-base' As far as I know this should not cause any problems, but YMMV.
