Oracle : Ошибка ORA-12208


"TNS:could not find the TNSNAV.ORA file"
*Cause: Either the ORACLE environment is not set up correctly, or the
TNSNAV.ORA file is not present.
*Action: Ensure that the ORACLE environment is set up appropriately
on your platform and that a TNSNAV.ORA file is present.

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