SQLyog连接数据库报错plugin caching_sh2_passsword could not be added

打开CMD: mysql -uroot -p

进去mysql执行下面语句：

ALTER USER 'root'@'localhost' IDENTIFIED BY 'password' PASSWORD EXPIRE NEVER; #修改加密规则 

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password'; #更新一下用户的密码 

FLUSH PRIVILEGES; #刷新权限

alter user 'root'@'localhost' identified by '123456';#重置密码，123456就是变更后的密码