I was able to import the 3.8b unity package an the 3.8b UPM like suggested on this guide: http://esotericsoftware.com/spine-unity-download#In-place-Update-%28via-.zip-file-or-git%29
I corrected the only error on my code, related to runtime changes, nothing to worry about.
When I hit play some errors appear on the console, errors like
- "Error reading skeleton JSON file for SkeletonData asset: hotdog_SkeletonData
I attached an image with the full console output.
How Can I fix this? Do I have to update the JSON file, if so how should I have to do it.