question Proper Way to import models into 0 AD?

[AGamer]

Hey, I was trying to import a model from a different game into 0 AD. I joined all of the mesh parts together, scaled it to the 0 AD armature, weight painted, and then exported to Collada.

First error I ran into was the "Multiple Polysets" error.

To remedy this, I clicked on the mesh and then selected export selected only.

Then I got a "No Objects in Scene" error. 

I am wondering if I did something wrong or formatted it incorrectly. I know that you are supposed to remove the light and camera from the scene, but anything else, I have no idea... I would really appreciate some help from you guys 

 

Here is the scene for reference:

[Classic-Burger]

@Stan`