我想在 Ubuntu 14.04 中安装一个软件包，但每次运行./configure命令时都会出现此错误：
E: Cannot get debconf version. Is debconf installed?
debconf: apt-extracttemplates failed: No such file or directory
Extracting templates from packages: 35%E: Cannot get debconf version. Is debconf installed?
debconf: apt-extracttemplates failed: No such file or directory
Extracting templates from packages: 70%E: Cannot get debconf version. Is debconf installed?
debconf: apt-extracttemplates failed: No such file or directory
Extracting templates from packages: 100%
dpkg: error: cannot scan updates directory `/var/lib/dpkg/updates/': No such file or directory
E: …