web-msg-sender开启了SSL 结果服务启动不了

服务器按文档配置了SSL
文档：

<?php
require_once __DIR__ . '/vendor/autoload.php';
use Workerman\Worker;
use PHPSocketIO\SocketIO;

// 传入ssl选项，包含证书的路径
$context = array(
    'ssl' => array(
        'local_cert'  => '/your/path/of/server.pem',
        'local_pk'    => '/your/path/of/server.key',
        'verify_peer' => false,
    )
);
$io = new SocketIO(2021, $context);

$io->on('connection', function($connection)use($io){
  echo "new connection coming\n";
});

Worker::runAll();

我的配置

<?php
use Workerman\Worker;
use Workerman\WebServer;
use Workerman\Lib\Timer;
use PHPSocketIO\SocketIO;

include __DIR__ . '/vendor/autoload.php';

// 全局数组保存uid在线数据
$uidConnectionMap = array();
// 记录最后一次广播的在线用户数
$last_online_count = 0;
// 记录最后一次广播的在线页面数
$last_online_page_count = 0;
$context = array(
    'ssl' => array(
        'local_cert' => dirname(__FILE__).'/socketssl/214155431650760.pem',
        'local_pk'   => dirname(__FILE__).'/socketssl/214155431650760.key',
        'verify_peer' => false,
    )
);
// PHPSocketIO服务
$sender_io = new SocketIO(2120,$context);

启动以后报错