symfony2生产环境报“Oops!AnErrorOccurred”

今天在官网下载个Download Symfony-2.5.5.zip版本，本地环境是nginx，按照http://symfony.cn/网站的快速入门教程，先是在浏览器上输入“http://www.symfony2.com/app_dev.php/demo/hello/molaifeng”，可以出现效果，可是输入“http://www.symfony2.com/app.php/demo/hello/molaifeng”时却提示

Oops! An Error OccurredThe server returned a "404 Not Found".Something is broken. Please e-mail us at [email] and let us know what you were doing when this error occurred. We will fix it as soon as possible. Sorry for any inconvenience caused.

看了下报错的

[2014-10-19 12:16:26] request.ERROR: Uncaught PHP Exception Symfony\Component\HttpKernel\Exception\NotFoundHttpException: "No route found for "GET /"" at D:\server\www\symfony\app\cache\prod\classes.php line 1992 {"exception":"[object] (Symfony\\Component\\HttpKernel\\Exception\\NotFoundHttpException: No route found for \"GET /\" at D:\\server\\www\\symfony\\app\\cache\\prod\\classes.php:1992, Symfony\\Component\\Routing\\Exception\\ResourceNotFoundException:  at D:\\server\\www\\symfony\\app\\cache\\prod\\appProdUrlMatcher.php:32)"} []

请朋友们指点迷津！！！

回复讨论(解决方案)

诶，感觉csdn论坛没落了，问的几个问题，都没人回答，尽是些聊天打屁的帖子