在一台旧电脑上装了深度系统，装了Qt，导入项目， build提示 clang++找不到：
Project ERROR: Cannot run compiler 'clang++'. Output:
===================
/bin/sh: 1: clang++: not found
===================
Maybe you forgot to setup the environment?
Error while parsing file /home/zhouyingge1104/repos/AimAlgo/AimAlgo.pro. Giving up.
解决方法：安装clang
sudo apt-get install clang安装完成后，在终端进行测试：clang -v
在QtCreator中查看Options, C++相关的都自动识别了：
参考：debian - /bin/sh: clang++: command not found - Unix & Linux Stack Exchange
