修改 Homestead.yaml 后重启失败？

 from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.2/lib/vagrant/util/subprocess.rb:180:in `execute'
    from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.2/lib/vagrant/util/subprocess.rb:22:in `execute'
    from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.2/plugins/providers/virtualbox/driver/base.rb:440:in `block in raw'
    from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.2/lib/vagrant/util/busy.rb:19:in `busy'
    from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.2/plugins/providers/virtualbox/driver/base.rb:439:in `raw'
    from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.2/plugins/providers/virtualbox/driver/base.rb:377:in `block in execute'
    from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.2/lib/vagrant/util/retryable.rb:17:in `retryable'
    from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.2/plugins/providers/virtualbox/driver/base.rb:372:in `execute'
    from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-2.0.2/plugins/providers/virtualbox/driver/version_5_0.rb:581:in `read_stat

遇到 类似 出错的
可能是
缩进 问题

注意缩进Homestead.yaml 文件 否则 启动不了，