JS is not loading up.Please help

[sami827]

In the exercise folder development and production's component behaving same.I copied the responsive folder to my desktop, installed npm then when I run gulp command productions js components doesn't load up even in localhost:8080 I am having the same problem.the Js only works in the development folder.

the picture above is from production folder. See, the sticky nav doesn't work.

this screenshot is from development folder.Here the screenshot does wor0k.

another thing is any of js i add is not working.

(sorry for the english)