Wrong style path

Hi, in one of my project I see these errors between save button and style selector:

Warning

JFolder: :folder: Path is not a folder. Path: C:\wamp\www\mysite\less\themes



JFolder: :files: Path is not a folder. Path: C:\wamp\www\mysite\tpls

In the theme listbox, there is only two options: use default or none selected, even though I have 5 themes under C:\wamp\www\mysite\templates\t3_blank\less\themes

So where do I correct the path?