The hook up folder is empty.

[kinomushuroom0315]

I want to assign a directory for the hook up folder to set up the scs blender tool, but the directory is still red. (This is why the model cannot be exported correctly.) I think the problem is that the hook up folder is empty, but I don't know where it is.
Below is a picture of this problem.↓
https://photos.app.goo.gl/d7ktAjUwP2HUa9dW9