Oracle Error ORA-24078: cannot specify a non-NULL SECONDARY_INSTANCE if PRIMARY_INSTANCE was NULL

Oracle Error Message

ORA-24078: cannot specify a non-NULL SECONDARY_INSTANCE if PRIMARY_INSTANCE was NULL

Reason for the Error

A non-NULL value was specified for SECONDARY_INSTANCE when PRIMARY_INSTANCE was NULL.

Solution

Specify a non-NULL primary instance before you specify a non-NULL secondary instance.