I am trying to export some characters that I have in 2021 to Unity 2017.
I first tried to export a simple scene with the characters inside it as a package from 2021 but when I import this custom package to Unity 2017, Unity gives an error message saying that it does not recognize the scene file:
Then I tried to export them as prefabs, but when I tried to import them to 2017, their icon looked weird as you can see below.
Am I doing anything wrong, is there anything I can do to import those posed characters to 2017?
Generally Unity does NOT support going back in versions, either at the project or asset level.
If something does work when you downgrade it to an earlier version of Unity, it will be because either a) that features that asset uses didn’t get upgraded, or b) it works only as far as you can tell and may have internal damage.
Depending on how much work you have embodied in 2021 (such as if you had 10,000 of these things), it might be worth writing your own custom exporter / importer. There might even be example scripts out there to do this at various levels of completeness, eg, depth of feature support.
