我是一名大学生，我正在努力完成我的项目，但我有问题，我不能创建角色。Click this image to see it

CREATE ROLE pharmacist;
CREATE ROLE administrator;

GRANT SELECT, UPDATE ON Patient TO pharmacist;
GRANT SELECT, UPDATE ON Prescription TO pharmacist;

GRANT SELECT, INSERT, UPDATE, DELETE ON Medication TO administrator;
GRANT SELECT, INSERT, UPDATE, DELETE ON pharmacy TO administrator;
GRANT UPDATE ON doctor TO administrator;

GRANT pharmacist TO administrator WITH ADMIN OPTION;

CREATE USER pharmacist_user IDENTIFIED BY pharmacist_password;
GRANT pharmacist TO pharmacist_user;
CREATE USER admin_user IDENTIFIED BY admin_password;
GRANT administrator TO admin_user;

我想知道为什么？我该怎么做？
我试着去创造角色，它应该是工作，但它不是