[frdrake]

I'm sure you include WPILib and by extension you are also including the PWM.cpp. I bet if you look in the PWM.cpp file at the line specified there will be an assertion of some kind made by that code that is then failing and that's why you're getting this error. I'm at work and don't have the libraries in front of me to try and find it myself. Some part of your inputs the PWM doesn't like.