3DS-Runtime error-Mesh has no TVFaces

i get a message popup when i try to export a mdx file that i worked on. It has something to do with the cones i added to the back of my model because when i export w/out the cones it is fine. Does anyone know how to fix the "tvFaces"?

Might i try suggesting adding a uvmap modifier to your meshes without one, models won't export without UVW verticies also.

ok i did that and it works but the spikes i added dont show up in-game? the model wont load?