After upgrading Cpanel server, i got following error when rebuilding httpd.conf

root@server20 [~]# /scripts/rebuildhttpdconf
info [rebuildhttpdconf] Missing owner for domain server20.hostonnet.com, force lookup to root
Built /usr/local/apache/conf/httpd.conf OK
root@server20 [~]# 

server20.hostonnet.com is the hostname for the server.

To fix, you need to edit the file

/var/cpanel/userdata/nobody/server20.hostonnet.com

Add

owner: nobody

At the end of the file. Once edited, file will look like

root@server20 [~]# cat /var/cpanel/userdata/nobody/server20.hostonnet.com
--- 
documentroot: /usr/local/apache/htdocs
group: nobody
ifmodulemodsuphpc: 
  group: nobody
ip: "*"
phpopenbasedirprotect: 1
port: 80
serveradmin: admin@hostonnet.com
serveralias: www.server20.hostonnet.com
servername: server20.hostonnet.com
usecanonicalname: 'Off'
user: nobody
userdirprotect: ''
owner: nobody
root@server20 [~]# 

And rebuildhttpdconf worked perfectly.

root@server20 [~]# /scripts/rebuildhttpdconf
Built /usr/local/apache/conf/httpd.conf OK
root@server20 [~]#