如果这是一个“太新手”的问题，我很抱歉。
我对快照不满意，并尝试使用以下行删除所有快照：
sudo apt autoremove --purge snapd gnome-software-plugin-snap
我发现此主题同一论坛。
但是现在我想返回并将系统设置为运行该行之前的状态。我尝试了以下操作：
sudo apt install snapd gnome-software-plugin-snap
虽然有些问题已经修复（比如应用程序 Software Ubuntu 现在看起来像以前一样...当我查找它们时它并没有显示任何快照），但我仍然无法运行任何快照，如 Mailspring 或 Spotify，尽管我的系统显示它们实际上已经安装好了。
有人知道我怎样才能把一切都抹去，就像我从来没有跑过第一行一样sudo apt autoremove --purge snapd gnome-software-plugin-snap？
我真的很感激。
根据请求添加：
输出：sudo snap info mailspring
*name: mailspring
summary: The best email app for people and teams at work
publisher: Mailspring (foundry376✓)
contact: http://support.getmailspring.com/
license: unset
description: |
Mailspring is a desktop email client with modern features like unified
inbox, snoozing, reminders, templates, offline search, and support for
Gmail labels. It even has a built-in "dark" and "ubuntu" themes so you can
style it to match your desktop. Move to Mailspring and breathe life back
into your tired inbox!
Provider Support:
Mailspring is absolutely free and supports all IMAP providers, including
Gmail, Office 365 and iCloud. Mailspring does not support Microsoft
Exchange ActiveSync.
Pro Version:
If your work revolves around email, Mailspring Pro adds even more features,
supercharging the app with read receipts, link tracking, send later,
reminders, contact profiles, email analytics and more. At $8/mo, Mailspring
Pro is an affordable alternative to sales and business email extensions and
the first tool to bring all these powerful features to any IMAP providers.
Mailspring is open-source software
(https://github.com/Foundry376/Mailspring) and Mailspring Pro subscriptions
allow the core maintainers to work on Mailspring and keep improvements
coming.
Mailspring ID:
In order to use Mailspring, you need to create a Mailspring account.
However, none of your email credentials or passwords are ever sent to the
cloud. Your Mailspring ID holds things like snooze dates and mail rules, so
you can re-install Mailspring or use it on two computers at once.
Terms of Service:
https://getmailspring.com/terms
Privacy Policy:
https://getmailspring.com/privacy-policy
commands:
- mailspring
snap-id: 0TyNxgP6wEM3nTXzymtc1wOnvl2P6Iij
tracking: stable
refresh-date: 2 days ago, at 12:33 CET
channels:
stable: 1.6.0 2019-03-18 (338) 202MB -
candidate: 1.6.0 2019-03-18 (338) 202MB -
beta: 1.6.0 2019-03-18 (338) 202MB -
edge: 1.6.1 2019-03-25 (343) 202MB -
installed: 1.6.0 (338) 202MB -*