Fbx exporting problems

Support Basics & Interface
1

Greetings, I recently started exporting models from blender and when it came to fbx format i got this :

blender error.png771×378 131 KB

At first I thought there was a problem with the rig and made another without it, and still no success. I am using blender v2.71

is there anything I missed?
Misc info: applied textures to part with uv, made some animations.

Thank you in advance

EDIT: Reason - an unassigned empty material slot (strange one)

2

Are you exporting the entire scene? Did you select the objects to export and check the option Selected Objects under Export FBX? Without your .blend file I can only guess.

3

Thank you for responding to my problem. Here is the blend file and yes i checked the option box
https://mega.co.nz/#!RBBnnCYb!xp8X-wcHrHrCJLgmeu8_GCCU5grBbgFCkgVUicBsyRQ

4

Thank you for responding to my problem. Here is the blend file and yes i checked the option box.

https://mega.co.nz/#!RBBnnCYb!xp8X-wcHrHrCJLgmeu8_GCCU5grBbgFCkgVUicBsyRQ

5

Oh, found the problem, quite stupid and unreasonable one: on one of the mesh parts the material slot wasn’t created, just empty…