'Hex file loaded is larger than device' hatası

 
   
   #include <16f877.h>    
      
   #fuses XT,NOWDT,NOPROTECT,NOBROWNOUT,NOLVP,NOPUT,NOWRT,NODEBUG,NOCPD  
   #use delay(clock=4000000)     
   #use fast_io(b)   
    
   void main ()  
   {     
   setup_psp(PSP_DISABLED);  
   setup_timer_1(T1_DISABLED);       
   setup_timer_2(T2_DISABLED,0,1);  
   setup_adc_ports(NO_ANALOGS);      
   setup_adc(ADC_OFF);               
   setup_CCP1(CCP_OFF);            
   setup_CCP2(CCP_OFF);        
         
      set_tris_b(0x00);     
      output_b(0x00);            
      
   basla:                 
   output_high(pin_b0);       
   delay_ms(500);        
   output_low(pin_b0);     
   delay_ms(500);          
   goto basla;          
      
   }