Not Compatible with unity 5.4 or upper

[giaroyal]

I've tested with Unity 5.3.5 and Unity 5.5
The 5.3.5 give prefab as usual but the other is not, is that possible to make another version to support latest version of Unity ?

[Dharengo]

I don't really update it anymore. I still review pull requests though.

[CarlosHBP]

I'm using Unity 5.6.1f and its working.

First, add all your assets (folder/sprites) and only then add your scml file.
Sometimes it does not generate Prefab and animations, but just send SCML a second time and it works!