报错： [2022-01-10 08:41:12] local.ERROR: Unable to guess the MIME type as no guessers are available (have you enabled the php_fileinfo extension?). {"exception":"[object] (Symfony\\Component\\Mime\\Ex

原因是没有开启php的php_fileinfo扩展，开启即可。 extension=php_fileinfo.dll 找到php.ini文件，搜索到php_fileinfo，去掉前面的分号，然后重启服务器apache。nginx下同理。 如果还有上述报错请查看 https://stackoverflow.com/questions/2306570