老師，我用sudo npm install body-parser時，報了這樣的警告：

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.

請問是cd到node_modules下的express目錄內，再進行安裝么？