No Mesh Rendering for Trees

I guess that isn’t a question.

I’ve imported Collada tree files but when I try adding them to the tree option I get an error that indicates there is no mesh rendering for the tree. If I add my tree directly to the terrain it populates without a problem and indicates that there is mesh rendering.

What am I doing wrong? (Ah, there’s the question)

I hope I’m not missing something obvious (I probably am).

Thanks in advance!

The documentation for trees:

has a section that describes the requirements for user-created trees to be rendered in the terrain engine.