Missing tools/serialization/regenerateXml.py or build/serialize/regenerateXml.py file.
No-Charge Havok PC edition dont include this?
You're right, this file isn't included in the release right now. I'm looking into this and I'll get you and answer as soon as possible.
Those files weren't included in the release but they will be next time. Until then, I've attached those scripts to this post.
Let me know if you have any trouble running these.