Oracle Message ORA-01276 - Cannot add file string. File has an Oracle Managed Files file name.

ERRORCannot add file string. File has an Oracle Managed Files file name.
CAUSEAn attempt was made to add to the database a datafile, log file, control file, snapshot control file, backup control file, datafile copy, control file copy or backuppiece with an Oracle Managed Files file name.
ACTIONRetry the operation with a new file name.