我是第一次使用 Ubuntu，我认为我做错了什么。当我尝试安装或卸载某些东西时，它会出现这样的情况：
dpkg: warning: old python3 package pre-removal script subprocess returned error exit status 127
dpkg: trying script from the new package instead ...
/var/lib/dpkg/tmp.ci/prerm: 5: /var/lib/dpkg/tmp.ci/prerm: py3clean: not found
和：
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
ubuntu-release-upgrader-core : Depends: python3-distupgrade (= 1:18.04.29) but 1:18.04.28 is installed
ubuntu-release-upgrader-gtk : Depends: python3-distupgrade (= 1:18.04.29) but 1:18.04.28 is installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).
我该如何解决这个问题？有解决方案吗？到目前为止，我已经尝试了 Google 上能找到的所有关于他的问题。