This is code for my work but I'm a beginner programmer, so this is going to look messy , I'm read evey web site to fix it. it still error to compiling but i don't have any idea. how to fix it ? help me please .
#include <Servo.h>
#include <Wire.h>
#include <LCD.h>
#include <LiquidCrystal_I2C.h>
#define ref0 500 // sensor A0 GP
#define ref1 500
LiquidCrystal_I2C lcd(0x27, 16, 2);
const int outputEnabled = 2;
const int s0 = 3;
const int s1 = 4;
const int s2 = 5;
const int s3 = 6;
const int nLED = 7;
const int out = 8;
int red = 0;
int green = 0;
int blue = 0;
int x;
/////// Motor DC /////////
int dir1PinA = 10;
int dir2PinA = 11;
int speedPinA = 9;
Servo myservo;
//////////////////////////////////////////////////////////
void setup()
{
servo_set();
motor_stop();
pinMode(outputEnabled, OUTPUT);
pinMode(s0, OUTPUT);
pinMode(s1, OUTPUT);
pinMode(s2, OUTPUT);
pinMode(s3, OUTPUT);
pinMode(nLED, OUTPUT);
pinMode(out, INPUT);
Serial.begin(9600);
digitalWrite(outputEnabled, LOW);
digitalWrite(s0, HIGH);
digitalWrite(s1, HIGH);
digitalWrite(nLED, LOW);
lcd.begin(16,2);
lcd.backlight();
lcd.setCursor(0, 0);
lcd.print(" STEM OBEC ");
lcd.setCursor(0, 1);
lcd.print(" Robotics");
lcd.setCursor(12, 1);
delay(2500);lcd.clear();
lcd.print("CONVEYOR PROJECT ");
lcd.setCursor(0, 1);
lcd.print(" Scan Press");
lcd.setCursor(12, 1);
buton();
//analcd();
}
//////////////////////////////////////////////////////////
void lcd_working() {lcd.clear();lcd.setCursor(0, 0);lcd.print("System Working.."); }
void lcd_stop() {lcd.clear();lcd.setCursor(0, 0);lcd.print(" Motor Stop"); }
void servo_set() {myservo.attach(12);myservo.write(10); }
void servo_up() {myservo.attach(12);myservo.write(90); }
void forward() {analogWrite(speedPinA, 255);digitalWrite(dir1PinA,LOW ); digitalWrite(dir2PinA,HIGH );}
void backward() {analogWrite(speedPinA, 255);digitalWrite(dir2PinA, HIGH); digitalWrite(dir1PinA,LOW );}
void motor_stop(){analogWrite(speedPinA, 0);digitalWrite(dir2PinA, LOW); digitalWrite(dir1PinA, HIGH);}
//////////////////////////////////////////////////////////
void ana() // GP Scan
{while(true){ {int s0 = analogRead(A0);Serial.println(s0);delay(10);}}}
//////////////////////////////////////////////////////////
void analcd() // GP Scan
{while(true){ {lcd.clear();Serial.println(analogRead(A0));Serial.println(analogRead(A1));lcd.setCursor(1, 1);lcd.print(analogRead(A0));lcd.setCursor(10, 1);lcd.print(analogRead(A1));delay(500);}}}
/////////////////////////////////////////////////////////
void gp() // GP Scan
{lcd_working();while(true){ analogRead(A0);analogRead(A1);forward();
if(analogRead(A0)>ref0) {gp1();}
else if (analogRead(A1)>ref1){setup(); }}}
/////////////////////////////////////////////////////////
void gp1() // GP Scan
{while(true){ analogRead(A0);analogRead(A1);forward();
if(analogRead(A0)<ref0-100) {lcd_stop() ;motor_stop(); delay(2000);gy31();}
else if (analogRead(A1)>ref1){setup(); }}}
/////////////////////////////////////////////////////////
void buton() // GP Scan
{while(true){ analogRead(A1);if(analogRead(A1)>ref1) {lcd_working();delay(1500);gp();}
}}
///////////////////////////////////////////////////////////
/////////////////SCAN GRB GY-31//////////////////////////////
void gy31() // RGB
{while(true){
color();
lcd.clear();
lcd.setCursor(4, 0);lcd.print("Process");
Serial.print("R");
Serial.print(red, DEC);
Serial.print(" G");
Serial.print(green, DEC);
Serial.print(" B");
Serial.print(blue, DEC);
Serial.println();
analogRead(A1);
//Simple logic to test for color
if (red < blue && red < green){Serial.println("Red");lcd.setCursor(6, 1);lcd.print("Red");servo_up();delay(2000);servo_set();delay(3000);gp();}
else if (blue < red && blue < green) {Serial.println("blue");lcd.setCursor(6, 1);lcd.print("blue");servo_set();delay(3000);gp();}
else if (analogRead(A1)>ref1){setup();}
else {Serial.println("green");lcd.setCursor(6, 1);lcd.print("green");servo_set();delay(3000);gp();}
delay(1000);}}
///////////////////////////////////////////////////////////
void color() {
digitalWrite(nLED,1);delay(100);
digitalWrite(s2, LOW);
digitalWrite(s3, LOW);
// count OUT, pRed, RED
red = pulseIn(out, digitalRead(out) == HIGH ? LOW : HIGH);
digitalWrite(s3, HIGH);
//count OUT, pBLUE, BLUE
blue = pulseIn(out, digitalRead(out) == HIGH ? LOW : HIGH);
digitalWrite(s2, HIGH);
// count OUT, pGreen, GREEN
green = pulseIn(out, digitalRead(out) == HIGH ? LOW : HIGH);
digitalWrite(nLED,0);
}
/////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////
void loop() { }
Error compiling for board
C:\Program Files (x86)\Arduino\libraries\LCD\LCD.cpp: In member function 'void LCD::selectFont(int)':
C:\Program Files (x86)\Arduino\libraries\LCD\LCD.cpp:152:19: error: statement cannot resolve address of overloaded function
Wire.write; // line spacing
^
Multiple libraries were found for "LiquidCrystal_I2C.h"
Used: C:\Users\Administrator\Documents\Arduino\libraries\LiquidCrystal_I2C
Not used: C:\Users\Administrator\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master
exit status 1
Error compiling for board Arduino/Genuino Uno.