ORA-19942: datafile copy string not created

admin

ORA-19942: datafilecopy string notcreated with compatibility 10.0 or greater
Cause: The specified datafile copy to be converted at thetarget was not produced
after making the tablespace in read/write mode with compatibility 10.0 orgreater
at the source database.
Action: Makea new datafile copy taken after tablespace has been made
read/write with compatibility 10.0 at source database and retry conversion.