couldn't find package.json

[oukanghua]

[INFO] 安装项目依赖...
npm ERR! code ENOENT
npm ERR! syscall open
npm ERR! path /classPointSystem/package.json
npm ERR! errno -2
npm ERR! enoent ENOENT: no such file or directory, open '/classPointSystem/package.json'
npm ERR! enoent This is related to npm not being able to find a file.
npm ERR! enoent