在homestead中vagrant up报错
$ vagrant up
报错如下：
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.
解决：
进入C:\Users\caixian\VirtualBox VMs\homestead
把homestead.vbox-tmp后缀.vbox-tmp
修改为.vbox去掉-tmp
然后重新vagrant up 即可。
