我无法安装软件中心：
billy2xs@billy2xs-W150ER:~$ sudo apt-get install software-center
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package software-center 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 'software-center' has no installation candidate
我也尝试过：
sudo apt-get install software-properties-common
并得到
software-properties-common is already the newest version (0.98.9.5).
所以我迷路了。
答案1
假设软件中心指的是 gnome-software-center。您可以通过以下命令安装它：-
sudo apt-get install gnome-software