我一直在尝试gnome-tweaks在新的 Ubuntu 20.04.3 LTS 安装上进行安装，但没有成功。
运行sudo apt install gnome-tweaks给出以下输出：
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:
gnome-tweaks : …