一、vagrant up 報錯
$ vagrant up
Bringing machine 'homestead-7' up with 'virtualbox' provider...
==> homestead-7: Checking if box 'laravel/homestead' is up to date...
==> homestead-7: A newer version of the box 'laravel/homestead' for provider 'virtualbox' is
==> homestead-7: available! You currently have version '6.0.0'. The latest is version
==> homestead-7: '6.1.0'. Run `vagrant box update` to update.
Your VM has become "inaccessible." Unfortunately, this is a critical error
with VirtualBox that Vagrant can not cleanly recover from. Please open VirtualBox
and clear out your inaccessible virtual machines or find a way to fix
them.
二、打開 VirtualBox
提示目錄中的文件不存在，進入該目錄，發現有個和提示的文件一樣但是后綴為.vbox-tmp的文件，把該文件后綴修改為.vbox去掉-tmp即可。
