I added the iTweenPath asset package to a blank unity project, to test it out. I am on windows and have the latest unity available. I dont get any errors, however when I add the iTweenPath to the scene, on any object or camera, I do not get the nice transform gizmos for each node, like the ones in the demo video. It is still useable, but I have to supply vector3 numbers for each node I create.
I have not added any code to the scene or made any modifications to the code in iTweenPath or iTween. Just dragged the iTweenPath.cs to the camera.
I am a new unity and iTween user so if it is something easy I missed then please help me out.