我安装了 VirtualBox 4.3 并卸载了它以获得 VirtualBox 5.1 ... 大错误，自从我不断收到错误或无法安装任何其他版本以来。已经使用过 Synaptic，并且
sudo apt-get purge virtualbox
根据建议，使用命令
sudo apt-get remove virtualbox
apt-get autoremove
这似乎摆脱了一些 VB 依赖项并允许我再次安装 VB，但是当我尝试启动它时出现此错误：
Failed to acquire the VirtualBox COM object.
The application will now terminate.
Failed to acquire the VirtualBox COM object.
The application will now terminate.
Document is empty.
Location: '/home/user/.config/VirtualBox/VirtualBox.xml', line 1 (0), column 1.
/home/vbox/vbox-5.1.22/src/VBox/Main/src-server/VirtualBoxImpl.cpp[550]
(nsresult VirtualBox::init()).
Result Code: NS_ERROR_FAILURE (0x80004005)
Component: VirtualBoxWrap
Interface: IVirtualBox {0169423f-46b4-cde9-91af-1e9d5b6cd945} Callee:
IVirtualBoxClient {d2937a8e-cb8d-4382-90ba-b7da78a74573}
我该怎么办？