Spriter 2D animation to Unity

Greetings,
I have head of the plug-in spriter2unity made by a community member. I find it a great work but the latest editor gives me errors and exceptions when I use it so I don’t dare to use it for my game.
I wish to ask if there is a way to export skeletal animation from spriter to unity besides the plugin I mentioned?
If not, is there another 2d animation software that is free and capable of exporting to Unity?
Thanks in advance.

A little late reply - but did you check the BrashMonkey youtube channel? He has a ton of tutorials to use SpriterPro to Unity workflow.