错误信息

打开后台出现404 分类无法打开 只有首页能进去

错误解决

在Nginx下修改规则配置 将下面一段代码添加进你的服务器配置 
location / { try_files $uri $uri/ /index.php?$query_string; }
location /api { try_files $uri $uri/ /api.php?$query_string; }
location /admin { try_files $uri $uri/ /admin.php?$query_string; }

location /flarum {
    deny all;
    return 404;
}

location ~* \.php$ {
    fastcgi_split_path_info^(.+.php)(/.+)$;
    fastcgi_pass unix:/var/run/php5-fpm.sock;
    include fastcgi_params;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    fastcgi_param HTTP_PROXY ""; # Fix for https://httpoxy.org/ vulnerability
    fastcgi_index index.php;
}

location ~* \.html$ {
    expires -1;
}

location ~* \.(css|js|gif|jpe?g|png)$ {
    expires 1M;
    add_header Pragma public;
    add_header Cache-Control "public, must-revalidate, proxy-revalidate";
}
要记住重启服务器使Nginx配置生效！