PichiPoy Autoweight Failure

I’m currently attempting to rig a character I’ve been modeling in ZBrush, I’ve been running into a problem where the Parent with automatic weights tool parents to the mesh but leaves no weight paint information. Would anyone have any Ideas what I’m doing wrong? I’ve been trying to trouble shoot this problem for about a week and I’m running out of ideas. The Blend file is attached below if anyone wants to take a look.
https://drive.google.com/file/d/0By_V1fzZYO3aVGtBcF9QRl9iZXc/view?usp=sharing