为什么我按照官方安装配置环境，新主机，按要求配置完，安装就是 404，后台就进不去
![$post['group']['name']](https://assets.fresns.com/images/communities/groups/astronomy.png)
Install and Use
https://discuss.fresns.org/post/m0hp3zSn
Unable to operate without login
Comment 5
Jevan
@jevan
Fresns Team
https://discuss.fresns.org/comment/iJ73vLMz
这个错误的核心是`App\Helpers\AppHelper`类中缺少`VERSION_MD5_16BIT`常量定义，需直接在对应文件中补充该常量，步骤如下：
### 步骤1：定位并编辑`AppHelper.php`文件
1. 进入Fresns项目根目录的`app/Helpers`目录；
2. 打开`AppHelper.php`文件（该文件是`App\Helpers\AppHelper`类的载体）...
### 步骤1：定位并编辑`AppHelper.php`文件
1. 进入Fresns项目根目录的`app/Helpers`目录；
2. 打开`AppHelper.php`文件（该文件是`App\Helpers\AppHelper`类的载体）...
https://discuss.fresns.org/comment/SxOpn10n
叮当猫
: 首页404，后台安装应用报这错。宝塔的面吧。。
Total
1
comments
https://discuss.fresns.org/comment/z0KfysRI
Owner: www
Path: /usr/local/bin:/usr/bin
Proxy:
/usr/bin/php
PHP 8.2.28 (cli) (built: May 9 2025 11:24:15) (NTS) Copyright (c) The PHP Group Zend Engine v4.2.28, Copyright (c) Zend Technologies
/usr/bin/composer
PHP version 8.2.28 (/www/server/php/82/bin/php)
Run the "...
Path: /usr/local/bin:/usr/bin
Proxy:
/usr/bin/php
PHP 8.2.28 (cli) (built: May 9 2025 11:24:15) (NTS) Copyright (c) The PHP Group Zend Engine v4.2.28, Copyright (c) Zend Technologies
/usr/bin/composer
PHP version 8.2.28 (/www/server/php/82/bin/php)
Run the "...
https://discuss.fresns.org/comment/OTLTsdju
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