MySQL 使用Navicat连接MySQL8出现1251错误
错误提示如下：
1251-Client does not support authentication protocol requested by server; consider upgrading MySQL client
解决方法：
用管理员身份打开cmd，输入"mysql -u root -p [-h locahost -P 3306]"（中括号内是默认内容）回车输入root用户密码进入MySQL客户端，然后：
mysql> alter user [email protected] identified by 'newpassword' password expire never; mysql> alter user [email protected] identified with mysql_native_password by 'newpassword'; mysql> flush privileges;
其中，"newpassword"是root用户新密码。