我曾尝试在 ubuntu 中安装sshfs，但一直收到此错误提示：（Package 'sshfs' has no installation candidate如下所示）。
我在类似的帖子中看到该sshfs包已移至 Universe 存储库，但即使安装了它，我仍然收到相同的错误消息。我做错了什么吗？
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package sshfs 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 'sshfs' has no installation candidate