You must reset your password using ALTER USER statement before executing this statement.

MySQL 5.7之后，刚初始化的MySQL实例要求先修改密码。否则会报错：

mysql> create database test;
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.

所以修改下密码就OK：

alter user [email protected] identified by '[email protected]!';
flush privileges;

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