Dutils error D: Please help!

Code:

C:\Users\Agustin\Desktop\SA-MP server actual\pawno\include\dutils.inc(22) : error 017: undefined symbol "MAX_PLAYERS"

C:\Users\Agustin\Desktop\SA-MP server actual\pawno\include\dutils.inc(233) : error 017: undefined symbol "fexist"

C:\Users\Agustin\Desktop\SA-MP server actual\pawno\include\dutils.inc(233) : warning 215: expression has no effect

C:\Users\Agustin\Desktop\SA-MP server actual\pawno\include\dutils.inc(233) : error 001: expected token: ";", but found ")"

C:\Users\Agustin\Desktop\SA-MP server actual\pawno\include\dutils.inc(233) : error 029: invalid expression, assumed zero

C:\Users\Agustin\Desktop\SA-MP server actual\pawno\include\dutils.inc(233) : fatal error 107: too many error messages on one line



Compilation aborted.Pawn compiler 3.2.3664 Copyright (c) 1997-2006, ITB CompuPhase





5 Errors.



Can someone help me with that bullshit? ._.