Getting error when install ansible tower

Setup log saved to setup.log.

[root@localhost ansible-tower-setup-bundle-2.3.0-1.el6]# ./setup.sh -p

SSH password: Using /root/ansible-tower-setup-bundle-2.3.0-1.el6/ansible.cfg as config file

[DEPRECATION WARNING]: The use of ‘include’ for tasks has been deprecated. Use ‘import_tasks’ for static inclusions or ‘include_tasks’ for dynamic inclusions. This feature will be removed in

a future release. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.

[DEPRECATION WARNING]: include is kept for backwards compatibility but usage is discouraged. The module documentation details page may explain more about this rationale… This feature will

be removed in a future release. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.

[WARNING]: Ignoring invalid attribute: sudo

[WARNING]: Ignoring invalid attribute: sudo_user

PLAY [all] ************************************************************************************************************************************************************************************

TASK [Gathering Facts] ************************************************************************************************************************************************************************

fatal: [192.168.25.240]: UNREACHABLE! => {“changed”: false, “msg”: “Authentication failure.”, “unreachable”: true}

to retry, use: --limit @/root/ansible-tower-setup-bundle-2.3.0-1.el6/install.retry

PLAY RECAP ************************************************************************************************************************************************************************************

192.168.25.240 : ok=0 changed=0 unreachable=1 failed=0