本文介绍了E:储存库"http://ppa.launchpad.net/certbot/certbot/ubuntu焦点发布"没有发布文件的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
由于我在Debian 10上安装了certbot，因此它始终显示此错误:
Since i installed certbot on Debian 10, it always shows this error:
root@HypeTime:/home/sinusbot# apt update
Hit:1 http://security.debian.org/debian-security buster/updates InRelease
Hit:2 http://deb.debian.org/debian buster InRelease
Hit:3 http://deb.debian.org/debian buster-updates InRelease
Ign:4 http://ppa.launchpad.net/certbot/certbot/ubuntu focal InRelease
Err:5 http://ppa.launchpad.net/certbot/certbot/ubuntu focal Release
404 Not Found [IP: 2001:67c:1560:8008::15 80]
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/certbot/certbot/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.
有人知道如何解决此错误吗?
Does someone know how to fix this error?
推荐答案
我通过删除ppa存储库摆脱了Ubuntu 20.04上的错误消息.我花了很长时间才找出确切的命令参数，所以这可能对其他人有帮助:-).我使用了命令:
I got rid of the error message on Ubuntu 20.04 by removing the ppa repository. It took me a long time to find out the exact command argument, so this might help others :-).I used the command:
sudo apt-add-repository -r ppa:certbot/certbot
之后，以下命令不会产生任何错误:
After that, the following commands do not generate any errors:
sudo apt update
sudo apt-get update
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