在我的 Ubuntu 20.04 机器上安装 VirtualBox 6.1 时遇到问题。这是我在终端中得到的结果：
$ sudo apt install virtualbox
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
virtualbox : Depends: libgsoap-2.8.91 but it is not installable
Depends: liblzf1 (>= 1.5) but it is not installable
Depends: libsdl1.2debian (>= 1.2.11) but it is not installable
Recommends: virtualbox-qt (= 6.1.16-dfsg-6~ubuntu1.20.04.1) but it is not going to be installed
Recommends: libqt5core5a (>= 5.12.2) but it is not installable
Recommends: libqt5gui5 (>= 5.0.2) but it is not installable or
libqt5gui5-gles (>= 5.0.2) but it is not installable
Recommends: libqt5opengl5 (>= 5.0.2) but it is not installable
Recommends: libqt5widgets5 (>= 5.0.2) but it is not installable
E: Unable to correct problems, you have held broken packages.
有任何想法吗？