MPLAB problem

#include <p18cxxx.h>

#pragma config WDT = OFF

void main (void)
{
  /* Make all bits on the Port B (LEDs) output bits.
   * If bit is cleared, then the bit is an output bit.
   */
  TRISB = 0;

  /* Reset the LEDs */
  PORTB = 0;

  /* Light the LEDs */
  PORTB = 0x5A;

  while (1)
    ;
}

CLRF PORTB        ; Initialize PORTB by
                  ; clearing output
                  ; data latches
CLRF LATB          ; Alternate method
                  ; to clear output
                  ; data latches
MOVLW 0x70      ; Set RB0, RB1, RB4 as
MOVWF ADCON1 ; digital I/O pins
MOVLW 0xCF      ; Value used to
                  ; initialize data
                  ; direction
MOVWF TRISB    ; Set RB<3:0> as inputs
                  ; RB<5:4> as outputs
                  ; RB<7:6> as inputs