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ubuntu 18.04 无法更新

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ubuntu 18.04 无法更新

当我尝试使用命令更新我的 18.04 时sudo apt update，出现以下结果，我不知道如何解决。有人能帮我吗？谢谢。

Hit:1 http://repo.steampowered.com/steam precise InRelease
Hit:2 http://us.archive.ubuntu.com/ubuntu bionic InRelease                     
Ign:3 http://dl.google.com/linux/chrome/deb stable InRelease                   
Get:4 http://packages.microsoft.com/repos/vscode stable InRelease [2,801 B]    
Get:5 http://us.archive.ubuntu.com/ubuntu bionic-updates InRelease [65.4 kB]   
Hit:6 http://dl.google.com/linux/chrome/deb stable Release                     
Ign:7 http://ppa.launchpad.net/trebelnik-stefina/ubuntu-tweak/ubuntu bionic InRelease
Get:8 http://security.ubuntu.com/ubuntu bionic-security InRelease [69.9 kB]
Hit:9 http://us.archive.ubuntu.com/ubuntu bionic-backports InRelease           
Get:10 http://packages.microsoft.com/repos/vscode stable/main amd64 Packages [50.1 kB]
Err:11 http://ppa.launchpad.net/trebelnik-stefina/ubuntu-tweak/ubuntu bionic Release
  404  Not Found [IP: 91.189.95.83 80]
Reading package lists... Done                                                  
E: The repository 'http://ppa.launchpad.net/trebelnik-stefina/ubuntu-tweak/ubuntu bionic 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.

答案1

首先，我不明白为什么你不能更新。是的，你可以。

这样，您就为 ubuntu-tweak 添加了 PPA，但它没有适用于 18.04 的软件包。使用以下命令将其删除

sudo ppa-purge ppa:trebelnik-stefina/ubuntu-tweak

PS:如未ppa-purge安装，请安装。

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