安装时，提示出现这样的错误：
spawning: cmake [ 'D:\\nodejs_project\\test\\node_modules\\face-recognition\\node_modules\\dlib-build\\dlib\\dlib',
'-G',
'Visual Studio 15 2017 Win64' ]
CMake Error in CMakeLists.txt:
Generator
Visual Studio 15 2017 Win64
could not find any instance of Visual Studio.
解决方法：
打开visual studio->工具->获取工具和功能
