Prompt error when enabling vCenter HA
“"The object ManagedObjectReference has already been deleted or has not been completely created"”
Or ""Object ManagedObjectReference has been deleted or not completely created""
This phenomenon generally occurs when vCenter HA has been configured and enabled before, and it will appear when it is removed and enabled again.
Solution:
Delete the second NIC (used for HA heartbeat) of the current VCSA to enter the vCenter HA configuration wizard