mysql 提示 1133 - Can't find any matching row in the user table MySQL

今天通过Native for mysql 工具添加一个用户，并且为这个用户赋值相关数据库的只读权限，提示如下错误“1133 - Can't find any matching row in the user table”
我的Native for mysql 相关语句

INSERT INTO mysql.user(Host,User,Password,ssl_cipher,x509_issuer,x509_subject) VALUES("localhost","test",PASSWORD("123456"),"","",""); grant select on `master`.* to test@localhost identified by '123456';

执行插入用户语句没有问题，但是执行权限赋值的时候提示：1133 - Can't find any matching row in the user table;
解决办法：插入新的用户成功时，需要刷新（flush privileges; ）下mysql 权限列表。正确mysql5.6 插入用户，并为用户赋值相关用户权限。

INSERT INTO mysql.user(Host,User,Password,ssl_cipher,x509_issuer,x509_subject) VALUES("localhost","test",PASSWORD("123456"),"","",""); flush privileges; grant select on `master`.* to test@localhost identified by '123456';

【mysql 提示 1133 - Can't find any matching row in the user table】