1、打开/var/Typecho/Common.php ，找到以下段代码

public static function isAppEngine()
    {
        return !empty($_SERVER['HTTP_APPNAME'])                     // SAE
            || !!getenv('HTTP_BAE_ENV_APPID')                       // BAE
            || !!getenv('SERVER_SOFTWARE')                          // BAE 3.0
            || (ini_get('acl.app_id') && class_exists('Alibaba'))   // ACE
            || (isset($_SERVER['SERVER_SOFTWARE']) && strpos($_SERVER['SERVER_SOFTWARE'],'Google App Engine') !== false) // GAE
            ;
    }

修改为

public static function isAppEngine()
    {
       return false;
    }

设置之后还是不行，经检查，uploads文件夹设置777权限即可

参考文章
http://www.phpnote.net/index.php/Home/Article/index/id/54
https://blog.csdn.net/ls1792304830/article/details/72824457