Navicat连接Mysql时1251错误

Navicat Premium连接Mysql 8报错如下：

1251-Client does not support authentication protocol requested by server; consider upgrading MySQL client

解决方法

mysql> alter user root@localhost identified by 'newpassword' password expire never;

mysql> alter user root@localhost identified with mysql_native_password by 'newpassword';

mysql> flush privileges;　

操作完成后，重新连接即可。