# CommandError: Another instance is already registered as primary

**URL:** <https://forum.ansible.com/t/commanderror-another-instance-is-already-registered-as-primary/23781>\
**Category:** Ansible Project\
**Tags:** aws\
**Created:** [February 21, 2017, 9:32am UTC](https://forum.ansible.com/t/commanderror-another-instance-is-already-registered-as-primary/23781 "2017-02-21T09:32:56Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![telltoanilsray](https://avatars.discourse-cdn.com/v4/letter/t/ee7513/32.png) [@telltoanilsray](https://forum.ansible.com/u/telltoanilsray)\
**Post date:** [February 21, 2017, 9:32am UTC](https://forum.ansible.com/t/commanderror-another-instance-is-already-registered-as-primary/23781/1 "2017-02-21T09:32:56Z")

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Hi Team,

I am trying to install ansible tower in AWS with external database. But i am getting below error.

TASK [misc : Register the primary instance in the database.] \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
fatal: [localhost]: FAILED! =\> {“changed”: false, “cmd”: “tower-manage register\_instance --primary --hostname="localhost"”, “delta”: “0:00:01.175520”, “end”: “2017-02-21 03:23:30.644152”, “failed”: true, “rc”: 1, “start”: “2017-02-21 03:23:29.468632”, “stderr”: “CommandError: Another instance is already registered as primary.”, “stdout”: “”, “stdout\_lines”: , “warnings”: }

If any one faced this issue. Kindly help me to fix it.

Thanks,  
Anil