When I create a directory in my res folder in android studio, it doesn't appear? even after refreshing

Question

So in my project view I have only a drawable file. I'm following a book tutorial at the moment and it has drawable-ldpi etc. so to avoid confusion I thought I'd crate them too. The problem is that when I created my drawable-ldpi file, it simply didn't appear in my res folder, even after refreshing an restarting android studio.

I tried to create it again, and it says the directory already exists. What am I doing wrong here? why aren't the directories I've created appearing in my res folder?

EDIT - Android project tree

Answer 1

From the top left corner, just above App folder, where you see Android - with dropdown icon. Click on it and select project file from drop down options.

You can also select "Project"