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Cisco FTD error : This device does not support local management.

Issue: Cisco FTDv is not allowing the administrator to add a local manager and throwing the following error.
"This device does not support local management."
Solution/Explanation:
Because virtual devices do not have web interfaces, you must use the CLI to register a virtual device to a Cisco Firepower Management Center, which can be physical or virtual.
 From your FTDv CLI, add the FMC IP and the registration key (don't forget this key)
On FMC , Add a new device. You enter the FTD IP in the host field and the same registration key.
Click on Register to add the device and start managing the device from FMC.
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