I need help with propertree

When I downloaded ProperTree.bat as told in the Dortania, propertree said that ProperTree.py must be installed in the same directory, I went and did that. Then when I open the ProperTree.bat file, it gives me this error: Traceback (most recent call last):

File "C:\Users\Calvin\Downloads\ProperTree.py", line 24, in <module>

from Scripts import plist, plistwindow, downloader

ImportError: cannot import name 'plist' from 'Scripts' (unknown location)

Script exited with error code: 1

;
Can anyone help on resolving this?