[amateurrobotguy]

I have made some progress. I got rid of all the error right down to the last lines:
MPLINK 3.40, Linker
Copyright (c) 2003 Microchip Technology Inc.
Error - could not find definition of symbol 'ceil' in file 'D:\Robot\MyFiles\user_routines.o'.
Errors : 1

All i did was this:

/************************************************** *****************************
* FILE NAME: user_routines.c <FRC VERSION>
*
* DESCRIPTION:
* This file contains the default mappings of inputs
* (like switches, joysticks, and buttons) to outputs on the RC.
*
* USAGE:
* You can either modify this file to fit your needs, or remove it from your
* project and replace it with a modified copy.
*
************************************************** *****************************/

#include "ifi_aliases.h"
#include "ifi_default.h"
#include "ifi_utilities.h"
#include "user_routines.h"
#include "printf_lib.h"
#include "user_Serialdrv.h"
#include <math.h>

extern unsigned char aBreakerWasTripped;

/*** DEFINE USER VARIABLES AND INITIALIZE tHEM HERE ***/

/* EXAMPLES: (see MPLAB C18 User's Guide, p.9 for all types)
unsigned char wheel_revolutions = 0; (can vary from 0 to 255)
unsigned int delay_count = 7; (can vary from 0 to 65,535)
int angle_deviation = 142; (can vary from -32,768 to 32,767)
unsigned long very_big_counter = 0; (can vary from 0 to 4,294,967,295)
*/
double ceil(double x);
double pow(double x, double y);

See two last lines. Am I going down the right path? If so, what is causing the error then?