vagrant up报错：unable to mount VirtualBox shared folders

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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:

/sbin/mount.vboxsf: mounting failed with the error: No such device

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vagrant plugin install vagrant-vbguest

vagrant vbguest

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vagrant plugin install vagrant-winnfsd

vagrant plugin install vagrant-vbguest