There was an error while executing `VBoxManage`, a CLI used by Vagrantfor controlling VirtualBox. The command and stderr is shown below.Command: ["startvm", "c6413135-fa8b-45cd-ba5e-b41051a1315a", "--type", "headless"]Stderr: VBoxManage.exe: error: The virtual machine 'ubuntu_default_1463103480641_80939' has terminated unexpectedly during startup with exit code 1 (0x1). ?More details may be?環境變量已經添加了，原來可以正常運行，今天突然不行了，刪了重裝還是這個錯誤，從虛擬機可以打開，就是用vagrant不行，求大神幫忙解決一下，多謝！