TNS-12538: TNS:no such protocol adapter

Cause: The protocol adapter requested (by way of the "(PROTOCOL=..)" keyword-value pair in a TNS address) is unknown. If the supplied address is typographically correct then the protocol adaptor is not installed.

Action: Install the protocol adapter or correct the typographical error, as appropriate. Note: if the supplied address was derived from resolving the service name, check the address in the appropriate file (TNSNAMES.ORA, LISTENER.ORA or TNSNET.ORA).

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