ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.

ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
mysql> ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.^C
mysql> alter user 'root'@'localhost' identified by 'Root@123456';
Query OK, 0 rows affected (0.00 sec)