Unable to build Apache on DirectAdmin server after CloudLinux install

Issue

• Apache webserver is down after rebuild, there is an error:

  httpd: Syntax error on line 163 of /etc/httpd/conf/httpd.conf: 
  Syntax error on line 2 of /etc/httpd/conf/extra/httpd-includes.conf: 
  Syntax error on line 1 of /etc/httpd/conf/extra/modproctitle.conf: Cannot load /usr/lib/apache/mod_proctitle.so 
  into server: /usr/lib/apache/mod_proctitle.so: cannot open shared object file: No such file or directory

• During the rebuild process, there can be error like below:

  error: Failed dependencies:
  	psmisc is needed by liblsapi-1:1.1-61.el7.cloudlinux.x86_64

Environment

• CloudLinux OS 7
• DirectAdmin
• Apache

Solution

1. Ensure that the cmake and psmisc packages are installed:

   # yum install cmake psmisc

2. Rebuild Apache again after that.

3. If steps above did not help, move or delete /usr/local/directadmin/custombuild/versions_cl.txt and repeat step #2

Cause

Missing packages.