Installation issue (asciidoc error)

I tried to install Ansible in RHEL 7.2 server. But it give the following error :

[root@ip-172-31-23-152 ansible]# make rpm
sed “s/%VERSION%/2.3.0/” docs/man/man1/ansible.1.asciidoc.in > docs/man/man1/ansible.1.asciidoc
ERROR: AsciiDoc ‘a2x’ command is not installed but is required to build docs/man/man1/ansible.1 docs/man/man1/ansible-playbook.1 docs/man/man1/ansible-pull.1 docs/man/man1/ansible-doc.1 docs/man/man1/ansible-galaxy.1 docs/man/man1/ansible-vault.1
make: *** [docs/man/man1/ansible.1] Error 1
rm docs/man/man1/ansible.1.asciidoc

Could you please send us docs or steps to resolve this error.

hi

You're missing the asciidoc package, which provides the a2x command.
Did you install that (as per docs at
http://docs.ansible.com/ansible/intro_installation.html#latest-release-via-yum)?

Dick