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报错：Error: ER_NOT_SUPPORTED_AUTH_MODE: Client does not support authentication protocol requested by server; consider upgrading MySQL client

解决办法
1.用管理员权限打开命令行，进入MySQL的bin目录，然后输入mysql -u root -p，输入密码

2.然后依次输入
ALTER USER 'root'@'localhost' IDENTIFIED BY 'password' PASSWORD EXPIRE NEVER; (修改加密规则 （必写）)
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password'; (更新用户密码 )
FLUSH PRIVILEGES; #刷新权限（不输入也可以）

3.输入刚刚修改的密码，再次测试连接