如何修复Ubuntu 20.04中的崇高文本PPA？

Question

$ sudo apt update && sudo apt upgrade -y
Hit:1 http://in.archive.ubuntu.com/ubuntu focal InRelease
Hit:2 http://in.archive.ubuntu.com/ubuntu focal-updates InRelease                                                                                    
Hit:3 http://in.archive.ubuntu.com/ubuntu focal-backports InRelease                                                                                  
Hit:4 http://ppa.launchpad.net/deadsnakes/ppa/ubuntu focal InRelease                                                                                 
Hit:5 http://apt.postgresql.org/pub/repos/apt focal-pgdg InRelease                                                                                   
Hit:6 http://security.ubuntu.com/ubuntu focal-security InRelease                                                                                     
Hit:7 https://packages.microsoft.com/ubuntu/20.04/prod focal InRelease                                                          
Hit:8 https://packages.microsoft.com/repos/ms-teams stable InRelease     
Hit:9 http://ppa.launchpad.net/graphics-drivers/ppa/ubuntu focal InRelease
Hit:10 http://ppa.launchpad.net/numix/ppa/ubuntu focal InRelease
Hit:11 http://ppa.launchpad.net/obsproject/obs-studio/ubuntu focal InRelease
Hit:12 http://ppa.launchpad.net/papirus/papirus/ubuntu focal InRelease
Hit:13 http://ppa.launchpad.net/peek-developers/stable/ubuntu focal InRelease
Ign:14 http://ppa.launchpad.net/webupd8team/sublime-text-2/ubuntu focal InRelease
Err:15 http://ppa.launchpad.net/webupd8team/sublime-text-2/ubuntu focal Release
  404  Not Found [IP: 91.189.95.85 80]
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/webupd8team/sublime-text-2/ubuntu focal Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

每当我尝试执行sudo apt update时，它都会给我这个错误和退出，我不记得像两周前那样通过终端安装崇高文本的方式，有什么方法可以解决这个问题吗？

我按照本教程从标题https://www.codeproject.com/articles/582849/installingplussublimeplustextplus2plusonpluslinuxp下载崇高的文本

在Linux /Ubuntu上安装崇高文本--更好的方法

我也试过卸载它，但没成功

$ sudo snap remove sublime-text
sublime-text removed

`

Answer 1

删除过时的PPA

webupd8 PPA自2018年以来就没有更新过，并且不支持Ubuntu20.04。

用

sudo add-apt-repository --remove ppa:webupd8team/sublime-text-2

从其官方存储库

安装崇高文本4

有关安装崇高文本的说明可以在其网站上找到。

首先，安装GPG密钥：

wget -qO - https://download.sublimetext.com/sublimehq-pub.gpg | sudo apt-key add -

然后在apt中启用https源。

sudo apt-get install apt-transport-https

对于稳定版本，请输入命令

echo "deb https://download.sublimetext.com/ apt/stable/" | sudo tee /etc/apt/sources.list.d/sublime-text.list

更新apt索引并安装崇高文本

sudo apt update
sudo apt install sublime-text