无法在Centos 7上启动Apache

Question

我用

安装了apache

sudo yum install httpd

比我尝试用

启动apache

sudo systemctl start httpd.service

但后来我收到以下错误：

Job for httpd.service failed because the control process exited with error code. See "systemctl status httpd.service" and "journalctl -xe" for details.

所以我跑

systemctl status httpd.service

我收到以下消息：

httpd: Syntax error on line 51 of /etc/httpd/conf/httpd.conf: Syntax error on line 4 of /etc/httpd/conf/extra/httpd-phpmodules.conf: Cannot load /usr/lib/apache/mod_mpm_prefork.so into server: /usr/lib/apache/mod_mpm_prefork.so: undefined symbol: ap_set_listencbratio

我也跑

journalctl -xe

我得到了：

httpd: Syntax error on line 51 of /etc/httpd/conf/httpd.conf: Syntax error on line 4 of /etc/httpd/conf/extra/httpd-phpmodules.co

我该如何解决这个问题？这太令人沮丧了