我需要在 Centos 中安装打开的项目，但在安装时遇到下面给出的错误。如何解决？
[apache2] ./bin/preinstall
Loaded plugins: fastestmirror, universal-hooks
Loading mirror speeds from cached hostfile
* EA4: 216.14.113.158
* cpanel-addons-production-feed: 216.14.113.158
* cpanel-plugins: 216.14.113.158
* base: ftpmirror.your.org
* epel: mirror.uic.edu
* extras: ftpmirror.your.org
* updates: ftpmirror.your.org
No package mod_ssl available.
Error: Nothing to do