I tryed to import the portal gun from portal into cod4.
So I read some tutorials and stuff.
Its all fine till I try to convert it to an real xmodel.
here a picture:

1. I converted the portalgun from "w_portalgun.mdl" to "weapon_pgun.OBJ"
2. I opened it in maya and made the color of the model white.
3. I exported it as a .OBJ again and used "xmodel_Creator_v0.6".
4. Then I was going to set up the material and all worked fine. I can convert the Material w/o any errors.
5. After that I tryed to convert the xmodel_export to an xmodel but i got that error and I dont know why.
Could anyone help me with that?