我尝试在 Kubuntu 19.10 上安装 Docker。
我使用这些步骤安装：https : //docs.docker.com/install/linux/docker-ce/ubuntu/
在第 2 步中，添加存储库和密钥后，我收到此消息
Package containerd.io is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'containerd.io' has no installation candidate