Oracle : Ошибка ORA-12217


"TNS:could not contact PREFERRED_CMANAGERS in TNSNAV.ORA"
*Cause: There is a syntax error in the PREFERRED_CMANAGERS entry, or
addresses specified are wrong, or the intended Connection Managers are
unavailable.
*Action: Check the PREFERRED_CMANAGERS entries in the client's
TNSNAV.ORA file and correct them or talk with your network administrator
to determine if the specified Connection Managers are available.
Verify that the Interchanges are active by using the INTCTL STATUS
command.

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