The Process class relies on proc_open, which is not available on your PHP installation
QQ截图20170212150501.png解决办法:打开php.ini,并搜索disable_functions指令,找到类似如下内容:disable_functions=passthru,exec,system,chroot,scandir,chgrp,chown,shell_exec,proc_get_status,popen,ini_alter,ini_restore,dl,openlog