安装g++时遇到的问题

Question

我想通过输入终端g++在Ubuntu20.04中安装sudo apt-get install g++，但它告诉我如下：

Some packages cannot be installed. 
This can mean that an impossible situation was requested or, 
if you are using a development distribution, which some packages
required have not yet been created or have been removed from Incoming. 
The following information can help resolve the situation:

The following packages have unmet dependencies:
 g++: It depends: g++-9 (> = 9.3.0-3 ~) but it is not going to be installed
E: Unable to fix problems, there are bad packages blocked".

我能做些什么来解决这些问题？

Answer 1

对于解决包依赖问题，智能比apt更有侵略性。aptitude会记住哪些软件包是明确请求的，哪些包是由于依赖关系而安装的。它将自动卸载那些在不再需要时没有显式请求的软件包。

使用sudo apt install aptitude安装智能，运行sudo apt install g++并遵循有关解决aptitude提供的未满足依赖关系的建议。