Homestead 开启 NFS 报错
按照Laravel Homestead：开启 NFS 解决站点响应缓慢的 贴子 一步一步操作的，Oracle VM VirtualBox用的6.0版本，vagrant的版本是2.2.5。
在vagrant up时，报Checking for guest additions in VM...
The guest additions on this VM do not match the installed version of VirtualBox! In most cases this is fine, but in rare cases it can prevent things such as shared folders from working properly. If you see shared folder errors, please make sure the guest additions within the virtual machine match the version of VirtualBox you have installed on your host and reload your VM.