Mac下共享文件夹问题，求助？

前面做过一遍了，成功了都，这次怕忘，复习，结果，还是忘了，在贡献文件夹这，卡住了，Mac系统Virtual 和Vagrant 都跟按视频一样

的，

Password:

==> default: Mounting NFS shared folders...

==> default: Mounting shared folders...

    default: /vagrant => /Users/apple/Desktop/mc

Vagrant was unable to mount VirtualBox shared folders. This is usually

because the filesystem "vboxsf" is not available. This filesystem is

made available via the VirtualBox Guest Additions and kernel module.

Please verify that these guest additions are properly installed in the

guest. This is not a bug in Vagrant and is usually caused by a faulty

Vagrant box. For context, the command attempted was:

mount -t vboxsf -o uid=1000,gid=1000 vagrant /vagrant

The error output from the command was:

mount: unknown filesystem type 'vboxsf'

# apple @ MacBook-Air in ~/Desktop/mc [12:41:32] C:1

$