进入install.php页面是空白页面，日志报错已解决悬赏5积分

[Tue May 03 23:16:59 2016] [error] [client 192.168.1.100] ERROR: SQLSTATE[28000] [1045] Access denied for user 'root'@'localhost' (using password: NO) in /opt/apache2.2.31_zentao/htdocs/zentaopms/framework/router.class.php on line 1538, last called by /opt/apache2.2.31_zentao/htdocs/zentaopms/framework/router.class.php on 1500 through function connectByPDO.