I've successfully imported the Spine run-times into Unity, and in the absence of instructions (which I probably just haven't found yet) I've attempted to get an animation going.
I've gotten as far as creating an atlas in TexturePacker, importing it, applying it to a "Spine Atlas", and applying that atlas to a "Spine Skeleton Data" asset.
But, no matter how I export it from Spine, the skeleton data won't accept my JSON file. When I drag the JSON asset over the skeleton data, I get a 'circle with line through' cursor, and the JSON doesn't show up in the list that opens when I browse from the property area.
Any help at all is appreciated.