今天早上进行软件包更新时，我收到以下软件包将被删除的信息：
- 等离子发现
- 等离子发现快照后端
- ubuntu-发布-升级程序-qt
无法确切地告诉您最近更新了哪些软件包（甚至不知道如何检查）。
无论如何，我说，“是的，无论更新需要什么。如果我稍后需要这些，我只需再次安装它们”。
但是，现在它不允许我安装 plasma-discover，并且在尝试修复时存在以下依赖性问题：
~ » sudo apt-get install plasma-discover
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.
plasma-discover : Depends: ubuntu-release-upgrader-qt but it is not going to be installed
Recommends: software-properties-kde but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
------------------------------------------------------------
~ » sudo apt-get install software-properties-kde
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.
software-properties-kde : Depends: python3-software-properties (= 0.96.24.32.1) but 0.96.24.32.3 is to be installed
E: Unable to correct problems, you have held broken packages.
------------------------------------------------------------
~ » sudo apt-get install python3-software-properties
Reading package lists... Done
Building dependency tree
Reading state information... Done
python3-software-properties is already the newest version (0.96.24.32.3).
The following packages were automatically installed and are no longer required:
libamd2 libbabl-0.1-0 libcamd2 libccolamd2 libcholmod3 libgegl-0.3-0 libmetis5 libsnapd-glib1 libsnapd-qt1
libumfpack5
Use 'sudo apt autoremove' to remove them.
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.
现在我真的不知道这是否是我所做事情的问题，或者这只是一个依赖问题，我必须等到它得到解决。
我很感激任何建议。希望 Plasma Discover 能回到我的 KDE 中...
干杯!