Just recently, I finished up on a track I was building. It had always worked in the game, and then I purged textures and models... immediately after doing so, I podded the file and went back in.
I've seen this error before, I believe it is the result of a bit of TXX file corruption, which somehow corrupts a bin when a pod is written (it's been awhile since I experienced it).
The cheap fix is to add a "null.raw" to your pod (it can be anything, just copy and rename an existing small texture).
I've forgotten to mention it - but one should be added to <a href=http://mtm2.com>Fixmore</a> to kill this error!