Help with an error importing mesh

Hey everyone , as you see in the attached picture this error pops when i try to import an object from a fbx format , the object has the same smoothing channel on all polys , polygons are not inverted , its triangulated , i dont know what else should i do and for sure it has a name )) so kindly your help with this issue . thanks.

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This has been bugging me since I read it because I had this same problem but I was using Blender and UDK. I haven’t had the problem since though.

Your model was expected as a .fbx file right? Did you change any settings of the mesh before exporting? Like size etc?