[Proteine]

How can I fix this?

C:\Documents and Settings\Administrator\Desktop\ser 0.3\gamemodes\larp.pwn(78816) : error 017: undefined symbol "GetPlayerCameraPos"
C:\Documents and Settings\Administrator\Desktop\ser 0.3\gamemodes\larp.pwn(78817) : error 017: undefined symbol "GetPlayerCameraFrontVector"
C:\Documents and Settings\Administrator\Desktop\ser 0.3\gamemodes\larp.pwn(78813) : warning 203: symbol is never used: "playerid"
Pawn compiler 3.2.3664 Copyright © 1997-2006, ITB CompuPhase


2 Errors.