Geometry data would normally mean a 3D surface. Please post the complete error. What type of object are you trying to export when the error occurs?

A 1973 Mustang Eleanor:
Full Error: {LINK REMOVED}https://www.mediafire.com/?677r1c446n4bc49

Everything works fine for me. What version of Blender are you using, and what version of the Tools?

When I asked for the type of object I meant Blender object, e.g. mesh or surface. I still don't know precisely what you did to trigger the bug.

Im using version 2.68

Objects:

77 Meshes
1 Armature

Datablocks:

141 Meshes
1 Camera
2 Armatures
395 materials
82 textures
1 World
11 Images

I just got a gta model online and resized it and set it up for a vehicle (With Armatures).

You can start by upgrading to the latest version of Blender. Then please tell me which object you are exporting when the error happens, because I still have no idea what you did to make the bug happen.

I tried to export all in a group. (I always did it like that)

1 group

Your file doesn't contain any groups. Do you mean that you clicked "Scene export"?

Well, that file did not have any groups.
I put them all in 1 group and tried exporting them by clicking "Scene export" also the other one when I clicked (nameofmodel).smd

And when i save something in a group in blender, the group dosn't save with it.

Exept when i save with .smd or .dmx

So you are saying that every time you export anything you get an error about geometry data?

Have you updated Blender yet?

Yes, but before it did not. Yes I updated Blender to the the newest version 2.69

Please send a screenshot of the error happening.

Edit: oh wait, when I asked what version of the Tools you have you never answered. Is it the latest version?

I am using version 1.10.2

{LINK REMOVED}http://www.mediafire.com/view/myfiles/#unji5spx69awwp1