当我安装git时。它显示错误如下：
$ sudo apt-get install git-all
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-all : Depends: git-doc but it is not going to be installed
Depends: git-el but it is not going to be installed
Depends: git-arch but it is not going to be installed
Depends: git-cvs but it is not going to be installed
Depends: git-svn but it is not going to be installed
Depends: git-email but it is not going to be installed
Depends: git-gui but it is not going to be installed
Depends: gitweb but it is not going to be installed
Recommends: git-daemon-run but it is not going to be installed or
git-daemon-sysvinit but it is not going to be installed
mysql-server-5.5 : Breaks: mysql-server (< 5.5.53-0ubuntu0.12.04.1) but 5.5.47-0ubuntu0.12.04.1 is to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
请帮我解决这个问题。感谢。