我正在努力在 Ubuntu 18.05 bionic 上安装 docker。
我刚刚开始在共享机器上工作，并且不太清楚之前做了什么。
无论如何，我删除了所有以前版本的docker，当我尝试执行sudo apt-get update
我收到以下错误：
E: The repository 'https://download.docker.com/linux/ubuntu bionic Release' no longer has 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://nvidia.github.io/libnvidia-container/ubuntu18.04/amd64 Release' no longer has 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://nvidia.github.io/nvidia-container-runtime/ubuntu18.04/amd64 Release' no longer has 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://nvidia.github.io/nvidia-docker/ubuntu18.04/amd64 Release' no longer has 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.
W: Target Packages (stable/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list.d/docker.list:1
W: Target Packages (stable/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list.d/docker.list:1
W: Target Translations (stable/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list.d/docker.list:1
W: Target CNF (stable/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list.d/docker.list:1
W: Target CNF (stable/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list.d/docker.list:1
我已经花了很长时间尝试解决这个问题，但没有成功。如果有人能帮忙我会很高兴。
多谢