#include<p18f4520.h>
#include<delays.h>

#pragma config OSC=HS
#pragma config WDT=OFF
#pragma config LVP=OFF
#pragma config PBADEN=OFF

#define CS1 PORTBbits.RB0
#define CS2 PORTBbits.RB1
#define SW0 PORTDbits

Line 20: error: p18f4520.h: No such file or directory
Line 18: error: delays.h: No such file or directory
cc1plus: warnings being treated as errors
Line 4: warning: ignoring #pragma config OSC
Line 5: warning: ignoring #pragma config WDT
Line 6: warning: ignoring #pragma config LVP
Line 7: warning: ignoring #pragma config PBADEN