A VirtualBox machine with the name 'homestead' already exists.
Please use another name or delete the machine with the existing
name, and try again.
Do
之前在mac上安装laravel/homestead vagrant虚拟机环境时由于参照的教程是： 每次都必须在~/Homestead目录下边运行vagrant up/halt命令，觉得实在是不方便，于是乎按照另外一个教程（在任何目录下可以通过homestead up来启动虚拟机）来配置环境，但是当键入homestead up时，却报出
==> default: Importing base box 'laravel/homestead'...
==> default: Matching MAC address for NAT networking...
A VirtualBox machine with the name 'homestead' already exists.
Please use another name or delete the machine with the existing
name, and try again.
这样的错误
stackoverflow上好几个人说通过vagrant global-status 查看虚拟器，然后在vagrant destroy {id}删除对应名称的虚拟机可以解决问题，但是重复n遍homestead up或者到~/Homestead下运行vagrant up之后,还是会报出上边的错误，后来通过VBoxManage list vms获取虚拟机列表，然后在通过运行
VBoxManage unregistervm homestead --delete
之后，重新运行homestead up之后 一切回归正常