NameVirtualHost has no effect and will be removed in the next release

Quesion:
Recently, using Apache 2.4 i got the error message "NameVirtualHost has no effect and will be removed in the next release". Can you explain this?

Answer:
From the apache documentation:

Prior to 2.3.11, NameVirtualHost was required to instruct the server that a particular IP address and port combination was usable as a name-based virtual host. In 2.3.11 and later, any time an IP address and port combination is used in multiple virtual hosts, name-based virtual hosting is automatically enabled for that address.

This directive currently has no effect.

So, you need to remove the NameVirtualHost directive from Apache conf to fix this issue.