Need help with PPM - null skin errors and missing gun

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: Okay, i've finished animating the YF-19 (yay!) and its weapon, and ive started work on the skin. Ive linked the skin with NsT, but it still gives me null skin errors - what did i do wrong, or what havent i done yet? : Also, the weapon.md2 doesnt show up at all on the model in-game - what did i do wrong? Ive linked the skin in NsT, but i dont think thats the problem. It has the same number of frames as the tris, so thats not the problem. I animated it with Q2M using the reference model, so i know its not too small o in the wrong place....help!?

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