ORA-01276: Cannot add file /u01/datafile/o1_mf_apps_ts__g601kz6x_.dbf. File has an Oracle Managed Files file name.

SQL> alter tablespace APPS_TS add datafile '/u01/datafile/o1_mf_apps_ts__g601kz6x_.dbf' size 500M autoextend on next 100M maxsize 15000M;
alter tablespace APPS_TS add datafile '/u01/datafile/o1_mf_apps_ts__g601kz6x_.dbf' size 500M autoextend on next 100M maxsize 15000M
*
ERROR at line 1:
ORA-01276: Cannot add file
/u01/datafile/o1_mf_apps_ts__g601kz6x_.dbf.  File has
an Oracle Managed Files file name.


alter tablespace APPS_TS add datafile size 500M autoextend on next 100M maxsize 15000M;