Argument 2 passed to Symfony\Component\HttpFoundation\Request::setTrustedProxies() must be of the ty

今天重新部署了一下环境和代码，报错····错误代码如下：

Argument 2 passed to Symfony\Component\HttpFoundation\Request::setTrustedProxies() must be of the type integer, array given,

后来百度了一下找到了解决办法：
找到文件app\Http\Middleware\TrustProxies.php
找到

protected $headers = [
        Request::HEADER_FORWARDED => 'FORWARDED',
        Request::HEADER_X_FORWARDED_FOR => 'X_FORWARDED_FOR',
        Request::HEADER_X_FORWARDED_HOST => 'X_FORWARDED_HOST',
        Request::HEADER_X_FORWARDED_PORT => 'X_FORWARDED_PORT',
        Request::HEADER_X_FORWARDED_PROTO => 'X_FORWARDED_PROTO',
    ];

修改为：

 protected $headers = Request::HEADER_X_FORWARDED_ALL;

保存好了！

具体问题原因先留白，之后补充！