Oracle Error Message
CLSGN-00143: Subdomain “string” already exists.
Reason for the Error
An attempt was made to create a GNS subdomain which already exists.
Solution
Specify a subdomain which does not exist.
CLSGN-00143: Subdomain “string” already exists.
An attempt was made to create a GNS subdomain which already exists.
Specify a subdomain which does not exist.