The best thiing i could recommend to to search google. If you type the following
"OpenPcap() FSM compilation failed" just like it is with quotations, you'll find many others with the same problem as you. One of those results is bound to have your answer.

I'm guessing when i say this, but i think you have a problem with:
libpcap if your using linux or winpcap if your using windows

Critter
http://www.chrisstokes.com