ORA-39170: Schema expression string does not correspond to any schemas.

ORA-39170
ORA-39170: Schema expression string does not correspond to any schemas.
Cause: A schema expression or schema list was supplied for a Data Pump job that
did not identify any schemas in the source database.
Action: Correct the schema specifications and retry the job.
More details : Viste http://www.high-oracle/ora-39170/
More details : Viste http://www.high-oracle/ora-39170/
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