老师，我用sudo npm install body-parser时，报了这样的警告：

npm WARN enoent ENOENT: no such file or directory, open '/home/gyh/project/WebProject/mymovie/package.json'

npm WARN mymovie No description

npm WARN mymovie No repository field.

npm WARN mymovie No README data

npm WARN mymovie No license field.

请问是cd到node_modules下的express目录内，再进行安装么？