ADC interface doesnt work

Hello, i am using PIC18F2580 and the XC8 v1.34 compiler and trying to interface an ADC but doesnt compile.Does anyone know whats happening? The code im using is below:
 
#include <stdio.h>
#include <stdlib.h>
#include "adc.h"
#include <delays.h>
void Initialize_ADC(void);
void Initialize_XLCD(void);
void DelayFor18TCY(void);
void DelayPORXLCD(void);
void DelayXLCD(void);
unsigned int ADCResult=0;
float voltage;
unsigned char ResultString[10];
void main(void)
{
OSCCON=0x76;

Initialize_ADC();
Initialize_XLCD();

putrsXLCD("ADC");
SetDDRamAddr(0x40);
putrsXLCD("Display Voltage");
for(int x=0;x<=20;x++)__delay_ms(50);
WriteCmdXLCD(0x01);

while(1)
{
ADCResult=0;
ConvertADC();
while(BusyADC());
ADCResult=ReadADC();
voltage=(ADCResult*5.0)/1024;

putrsXLCD("Voltage=");
sprintf(ResultString, "%.3", voltage);
putsXLCD(ResultString);
putrsXLCD("V");
putrsXLCD(" ");
WriteCmdXLCD(0x02);
}
}
void DelayFor18TCY(void)
{
Delay10TCYx(2);
}
void DelayPORXLCD(void)
{
Delay1KTCYx(60);
return;
}
void DelayXLCD(void)
{
Delay1KTCYx(20);
return;
}
void Initialize_ADC(void)
{
OpenADC(ADC_FOSC_2 & ADC_RIGHT_JUST & ADC_2_TAD, ADC_CH0 & ADC_INT_ON & ADC_REF_VDD_VSS, ADC_1ANA);
}
void Initialize_XLCD(void)
{
OpenXLCD(FOUR_BIT & LINES_5X7);
while(BusyXLCD());
WriteCmdXLCD(0x06);
WriteCmdXLCD(0x0C);
WriteCmdXLCD(0x01);
}

Yeah sorry about that haha.....the whole build log is below:
 
make -f nbproject/Makefile-default.mk SUBPROJECTS= .build-conf
make[1]: Entering directory 'C:/Users/aeros/MPLABXProjects/adc.X'
make -f nbproject/Makefile-default.mk dist/default/production/adc.X.production.hex
make[2]: Entering directory 'C:/Users/aeros/MPLABXProjects/adc.X'
"C:\Program Files (x86)\Microchip\xc8\v1.34\bin\xc8.exe" --pass1 --chip=18F2580 -Q -G --double=24 --float=24 --emi=wordwrite --opt=+asm,+asmfile,-speed,+space,-debug --addrqual=ignore --mode=free -P -N255 --warn=-3 --asmlist -DXPRJ_default=default --summary=default,-psect,-class,+mem,-hex,-file --output=default,-inhx032 --runtime=default,+clear,+init,-keep,-no_startup,-download,+config,+clib,+plib --output=-mcof,+elf:multilocs --stack=compiled:auto:auto:auto "--errformat=%f:%l: error: (%n) %s" "--warnformat=%f:%l: warning: (%n) %s" "--msgformat=%f:%l: advisory: (%n) %s" -obuild/default/production/adc.p1 adc.c
adc.c:45: error: (969) end of string in format specifier
adc.c:45: warning: (325) error in printf-style format string
(908) exit status = 1
nbproject/Makefile-default.mk:107: recipe for target 'build/default/production/adc.p1' failed
make[2]: Leaving directory 'C:/Users/aeros/MPLABXProjects/adc.X'
nbproject/Makefile-default.mk:91: recipe for target '.build-conf' failed
make[1]: Leaving directory 'C:/Users/aeros/MPLABXProjects/adc.X'
nbproject/Makefile-impl.mk:39: recipe for target '.build-impl' failed
make[2]: *** [build/default/production/adc.p1] Error 1
make[1]: *** [.build-conf] Error 2
make: *** [.build-impl] Error 2
BUILD FAILED (exit value 2, total time: 2s)

On line 45 i have:
 
sprintf(ResultString, "%.3", voltage);
 
But still this should work
 

I am watching a youtube tutorial the he has it exactly like that and it works

It is invalid C syntax, so he's using some sort of non compliant compiler then.
I can't comment any further as you failed to reveal the address of this "Youtube video".
 

Yeah i know,i supposed that since its a tutorial he may be using something i dont know ,so it should be alright,i am almost done with embedded C,only some final theoritical stuff remain about the better structure of the code and some practice in assignments,thats it....unfortunately for some reason the forum doesnt allow me to include a link...

I'm not totally sure but I do know that the XC8 compiler parses the format specifier when it is a string literal so that it can optimise what modules need to be included in the app (rather than including everything and leaving it to runtime to do the parsing and interpreting). If the compiler can't interpret the format specifier string according to the 'rules', then it looks like it treats it as a compile error.
Susan