the name 'CharacterMotor' does not denote a valid type - issue with unity 4 standard asserts prefab

I was working on a 3d wanting to use a 3rd person character controller and thought I'd try and use the prefab for reference as I remember it worked well when I used it a while ago in unity 4. anyway, I imported the folder which worked fine in unity 4 into unity 5 and I get this error:

Assets/Character Controllers/Sources/Scripts/PlatformInputController.js(5,21): BCE0018: The name 'CharacterMotor' does not denote a valid type ('not found'). Did you mean 'UnityEngine.CharacterJoint'?

this is the line 5, which it refers to:

Code (CSharp):

1. private var motor : CharacterMotor;

I have tried changing CharacterMotor to UnityEngine.CharacterJoint but that causes way more errors than it solves and definitely doesn't seem like the solution, so I just wondered what I should do as this has been annoying me for around a day now. I usually can figure stuff out on unity pretty well now but this is something that I can't figure out. I have also tried changing the line in question to something like:

Code (CSharp):

1. private CharacterController motor;

but to no avail (just throws up another error)

This is the only error, so if it could be solved it'd be great. I really hate the new 3rd person character controller in unity 5 btw, hence why I'm trying to get this to work

 

I'll just bump this once

 

What error does it show when you change it to

Code (csharp):

1. private CharacterController motor;

?