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mysql Client does not support authentication protocol requested by server; consider upgrading MySQL
只安装MySQL sever 用navicat 连接
解决方法：
管理员后台（root），输入密码
use mysql;
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '你的密码';
或者：
mysql -u root -p
-
ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '你的密码';
-
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '你的密码';
-
SELECT plugin FROM mysql.user WHERE User = 'root';