ORA-26012
        header in file string has an incompatible version number
        
        
        Cause
        A 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 Usually this message indicates that the dump file was produced by a newer version of the Oracle server.
        Action
        Load this dump file using the same version of the Oracle server that created the file.
        
     
    
    
        ORA-26012
        header in file string has an incompatible version number
        
        
        Cause
        A 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 Usually this message indicates that the dump file was produced by a newer version of the Oracle server.
        Action
        Load this dump file using the same version of the Oracle server that created the file.
        
     
    
    
        ORA-26012
        header in file string has an incompatible version number
        
        
        Cause
        A 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 Usually this message indicates that the dump file was produced by a newer version of the Oracle server.
        Action
        Load this dump file using the same version of the Oracle server that created the file.