安装显示"数据库连接错误",请教为何？

数据库连接错误

• mysqlnd cannot connect to MySQL 4.1+ using the old insecure authentication. Please use an administration tool to reset your password with the command SET PASSWORD = PASSWORD('your_existing_password'). This will store a new, and more secure, hash value in mysql.user. If this user is used in other scripts executed by PHP 5.2 or earlier you might need to remove the old-passwords flag from your my.cnf file
  

您必须解决以上问题，安装才可以继续






安装3.3版本，都提示正常，安装数据库的时候提示这个，请教为何？如何解决？

数据库密码 加密方式有问题