How to solve the problem when installing otrs on centos?

Question

OTRS

[[email protected] ~]# yum install --nogpgcheck ./otrs-6.0.27-02.noarch.rpm 
Последняя проверка окончания срока действия метаданных: 0:24:22 назад, Сб 04 апр 2020 23:18:51.
Ошибка: 
 Проблема: conflicting requests
  - nothing provides perl(DateTime) needed by otrs-6.0.27-02.noarch
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)

Answer 1

There it is also written in clear English that it lacks dependencies .