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;

MySQL 使用Navicat连接MySQL8出现1251错误

其中，"newpassword"是root用户新密码。