Oracle Database Discussions

I try to create partition table like in listing below:

CREATE TABLE SOME_TABLE
  (
    COL1 NUMBER(2),
    COL2 VARCHAR(45),
    .
    .
    COLXX VARCHAR(30)
  ) 
   PARTITION BY RANGE(COL1) SUBPARTITION BY HASH(COL2)
   (PARTITION part_less_2 VALUES LESS THAN (2) TABLESPACE tbs_1
    PARTITION part_less_11 VALUES LESS THAN (11) TABLESPACE tbs_2
    PARTITION part_maxval VALUES LESS THAN (MAXVALUE) TABLESPACE tbs_3);

Could someone explain me why I've got ORA-14020 as an output?