我尝试按照先前答案中的建议进行操作，但无法重新安装 gnome，并列出了我的努力的结果。
jack@jack-ThinkCentre-M58p:~$ sudo apt-get install --reinstall gnome-control-center
E: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 12836 (unattended-upgr)
N: Be aware that removing the lock file is not a solution and may break your system.
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?
cocomac，我想我在这里得到了它---https://askubuntu.com/questions/1237965/reporting-i-cant-open-settings-in-ubuntu-20-04-lts