php - 已经安装'laravel/homestead' box, 执行homestead up时提示找不到box.求助.宿主机mac

Question

执行 vagrant up 命令 会提示

The provider 'virtualbox' could not be found, but was requested to
back the machine 'homestead-7'. Please use a provider that exists.

好无助
执行 list 命令时 ,可以看到

your-desired-host-name:Homestead Anan$ vagrant box list
laravel/homestead (virtualbox, 0.6.0)

your-desired-host-name:~ Anan$ cd ~/Homestead && vagrant up
The provider 'virtualbox' could not be found, but was requested to
back the machine 'homestead-7'. Please use a provider that exists.
your-desired-host-name:Homestead Anan$ vagrant box list
laravel/homestead (virtualbox, 0.6.0)
your-desired-host-name:Homestead Anan$ 

Answer 1

直接在Homestead 目录下执行vagrant up

Answer 2

virtualbox安装了吗？