当我尝试在我的机器上安装 g++ 时，我收到以下消息。
support:/$ sudo apt-get install g++
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
g++ : Depends: gcc (>= 4:4.8.1-2ubuntu3) but …