Oracle : Ошибка ORA-12221

"TNS:illegal ADDRESS parameters"
*Cause: An illegal set of protocol adapter parameters was specified. In
some cases, this error is returned when a connection cannot be made to the
protocol transport.
*Action: Verify that the destination can be reached using the specified
protocol. Check the parameters within the ADDRESS section of
TNSNAMES.ORA or in the directory. Legal ADDRESS parameter formats may
be found in the Oracle operating system specific documentation or the
Oracle Net Administrator's Guide. Protocols that resolve names at the
transport layer are vulnerable to this error if not properly configured
or names are misspelled.

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