mac终端命令行启动start.php文件失败，报： Uncaught exception 'Exception' with message 'Setsid fail'

Fatal error: Uncaught exception 'Exception' with message 'Setsid fail' in /www/wwwroot/***/vendor/GatewayWorker/vendor/workerman/workerman/Worker.php:1217
Stack trace:
#0 /www/wwwroot/***/vendor/GatewayWorker/vendor/workerman/workerman/Worker.php(540): Workerman\Worker::daemonize()
#1 /www/wwwroot/***/vendor/GatewayWorker/start.php(37): Workerman\Worker::runAll()
#2 {main}
  thrown in /www/wwwroot/***/vendor/GatewayWorker/vendor/workerman/workerman/Worker.php on line 1217