Oracle Solution for Error ora-26012

ORA-26012: header in file string has an incompatible version number

What triggered the Error:

dump file was specified for a load operation whose version number is incompatible with the dump file version currently produced by the Oracle server on the system. Usually this message indicates that the dump file was produced by a newer version of the Oracle server.

What should we do to fix it:

ad this dump file using the same version of the Oracle server that created the file.