在 dist-upgrade: Error, pkgProblemResolver::Resolve 生成 的中斷，這可能是由持有的包引起的

在dist-upgrade操作過程中，我遇到了 apt 包的問題。

執行以下任何命令時，我遇到相同的錯誤：

$ sudo apt dist-upgrade
$ sudo apt --fix-broken install
$ sudo apt-get autoremove

錯誤：

Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Correcting dependencies... failed.
The following packages have unmet dependencies:
gdm3 : Depends: gir1.2-gdm-1.0 (= 41~rc-0ubuntu2pop0~1634915133~21.10~cf40258) but 42.0-1ubuntu6pop1~1650301427~22.04~2055533 is installed
       Depends: libgdm1 (= 41~rc-0ubuntu2pop0~1634915133~21.10~cf40258) but 42.0-1ubuntu6pop1~1650301427~22.04~2055533 is installed
gnome-settings-daemon : Depends: gnome-settings-daemon-common (= 40.0.1-1ubuntu3pop0~1639691325~21.10~3bcd31b) but 42.1-1ubuntu3pop0~1651657687~22.04~0386384 is installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
E: Unable to correct dependencies

我找到了 3 篇相關文章，其中沒有一個解決方案解決了我的問題：

• https://askubuntu.com/questions/124845/eerror-pkgproblemresolverresolve-generated-breaks-this-may-be-caused-by-hel
• https://askubuntu.com/questions/1279062/upgrade-from-18-04-to-20-04-prevented-by-eerror-pkgproblemresolverresolve-g
• https://askubuntu.com/questions/633544/e-error-pkgproblemresolverresolve-generated-breaks-this-may-be-caused-by-he

在上面的問題中，他們似乎專注於特定的包，而不是 dist-upgrade，所以我不知道如何簡單地辨識和刪除有問題的包。

如果我試圖刪除一個有問題的包，我會得到一個看起來像它的依賴鏈，這些依賴鏈會dist-upgrade延伸到 .

$ sudo apt-get remove gdm3
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
gnome-settings-daemon : Depends: gnome-settings-daemon-common (= 40.0.1-1ubuntu3pop0~1639691325~21.10~3bcd31b) but 42.1-1ubuntu3pop0~1651657687~22.04~0386384 is to be installed
pop-desktop : Depends: gdm3 but it is not going to be installed
              Recommends: io.elementary.sideload but it is not installable
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).

我在這裡找到了主要的 PopOS 升級執行緒：

https://www.reddit.com/r/pop_os/comments/ucge6e/upgrade_help_thread/

這些步驟為我解決了問題：

pop-upgrade release repair
sudo apt-get install -f
sudo apt-get full-upgrade --allow-downgrades

--allow-downgrades根據我遇到的其他資源，特別是我缺少的東西。

引用自：https://unix.stackexchange.com/questions/702456