I have trouble setting up AI in MP

I have trouble working on setting up on the AI. I went to a website on this site name call .::Complete AI in MP Tutorial::. - Glitchamanjaro.com Gaming Forums. I follow the tutorial correctly, i have no mistake of following the tut but something came up on my screen. It show an error like this picture









just like that. Hopefully if u people can give me a good reason why it show up like that. I read the error and i don't believe that was possible that i was missing something. I just start over again to make sure i didn't miss anything or make a mistake. Let me know if the word is too small, i will tell u what it's say.