无法从软件包中选择候选版本,因为没有候选版本

无法从软件包中选择候选版本,因为没有候选版本

nmap我在从 Ubuntu 16.04 计算机下载及其依赖项(离线安装)时遇到问题。

执行时:

apt-get download $(apt-rdepends nmap |grep -v "^ ")

我得到以下输出:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Can't select candidate version from package libblas.so.3 as it has no candidate
E: Can't select candidate version from package debconf-2.0 as it has no candidate

我尝试使用 来解决错误apt-get update,但没有帮助。非常感谢任何帮助。

答案1

sudo apt-get install debconf-2.0

你会得到:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package debconf-2.0 is a virtual package provided by:
debconf 1.5.58ubuntu1
cdebconf 0.198ubuntu1
You should explicitly select one to install.

您不应该使用 debconf-2.0,而应该使用 debconf:

sudo apt-get download debconf

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