Leap motion hands not interacting with objs

[WiredIsotope]

Hi! I dl the Leap Motion Orion software and checked out a bunch of fun games in the gallery, they worked perfectly.
I decided to work with my own stuff so I dl unity core assets 4.4.0 off the website https://developer.leapmotion.com/unity#5436356

With the HTC vive and Unity 2017.1.1.f1

I put in the Leap rig into the Game hierarchy panel and the camera head tracking is working great, I can see the hands, but I can't get the hands to interact with any of the objs.

Am I missing a step?
I would be really grateful If someone can help me figure out what I need to do to get the leap motion hands to collide and interact with the objects because right now they are just passing through everything.
Thanks!

[jselstad]

Yes, you either need to use the Interaction Engine and make your interactable objects Interaction Behaviours (see Interaction Engine documentation), or if you just need absolutely simple collision, add RigidRoundHands to your Hand Models object (drag in the prefabs underneath the Hand Models object alongside the Capsule Hands and make sure you increase the size of the Model Pool on the Hand Model Manager and add them there too).

[WiredIsotope]

So, I got the hands to work with just the simple rigidroundhands, thanks for that!
But then, I downloaded the Interaction Engine and I keep getting this error message:

I found other people had a similar problem and they seemed to be able to fix it by updating unity. I tried doing that, but it says my unity is already up-to-date. Is there another way to fix this problem?

Thank you!

[jselstad]

The primary version of Unity to use the IE with is 2017.4 LTS (Long-term Support); it should work in that version.