Could not get the storage format of the medium

打开虚拟硬盘************失败Could not get the storage format of the medium
**************VBOX_E_IPRT_ERROR明细
返回 代码:
VBOX_E_IPRT_ERROR (0x80BB0005)
组件:
Medium
界面:
IMedium {9edda847-1279-4b0a-9af7-9d66251ccc18}
被召者:
IVirtualBox {d2de270c-1d4b-4c9e-843f-bbb9b47269ff}