# 【解决】dedecmsV5.7问答模块,后台-问题管理-答案管理-出错! > 装好dede5.7后问答一直有问题,在后台点击问题管理与答案管理都会提示 Not Found The requested URL /404.html was not found on this server. Additionally, a 404 Not Found error was encou 装好dede5.7后问答一直有问题,在后台点击问题管理与答案管理都会提示 > Not Found > The requested URL /404.html was not found on this server. > Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request. 一直也找不到解决办法.索性就删除了问答.但是由于网站的需要又必须要问答系统就只能找原因.最终发现 win主机下没问题而linux主机都有问题 inux系统 下面是解决办法: 将include/lurd.class.php的文件名改成大写Lurd.class.php就可以了 或者修改ask\\control\\admin\\answer.php和ask\\control\\admin\\asktype.php文件 将$this->lurd = new Lurd改为$this->lurd = new lurd --- **分类**:建站 **标签**:dedecms · 5.7 · 问答模块 · 问题管理 · 答案管理 **作者**:子龙 **链接**:https://octohz.com/p/2923