ORA-19942: datafile copy [string] not created with compatibility 10.0 or greater

Cause: The specified datafile copy to be converted at the target was not produced after making the tablespace in read/write mode with compatibility 10.0 or greater at the source database.

Action: Make a new datafile copy taken after tablespace has been made read/write with compatibility 10.0 at source database and retry conversion.

Error Type: ORA

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