不久前我安装了 Docker，但不记得我做了什么。
我仍在学习/适应 Linux，不确定如何摆脱以下错误。
运行时sudo /apt-get update出现以下错误。如何消除此错误？
我只是想消除这个错误，而不是重新安装 Docker，我是否需要恢复add-apt-repository安装时执行的操作？
Err:14 https://download.docker.com/linux/ubuntu eoan Release
404 Not Found [IP: 2600:9000:21d5:ae00:3:db06:4200:93a1 443]
Get:15 http://us.archive.ubuntu.com/ubuntu eoan-updates InRelease [97.5 kB]
Err:16 https://download.docker.com/linux/debian eoan Release
404 Not Found [IP: 2600:9000:21d5:ae00:3:db06:4200:93a1 443]
Get:17 http://us.archive.ubuntu.com/ubuntu eoan-backports InRelease [88.8 kB]
Hit:19 https://packagecloud.io/slacktechnologies/slack/debian jessie InRelease
Reading package lists... Done
E: The repository 'https://download.docker.com/linux/ubuntu eoan 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.
E: The repository 'https://download.docker.com/linux/debian eoan 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
感谢其他人提供的背景信息。如果这有帮助的话，为了真正解决错误，我通过运行以下命令解决了该问题：
sudo nano /etc/apt/sources.list
然后只需删除 eoan 的 repo 源并确保我使用以下内容：
deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable
# deb-src [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable
此后我就可以apt-get无问题地运行。