Robots don't quit

[Mr.Roboto3335]

When I try to upload the code it says "Robots don't quit!" I would like to know why it does that and how to fix it. Thanks!

/*----------------------------------------------------------------------------*/
/* Copyright (c) FIRST 2008. All Rights Reserved.                             */
/* Open Source Software - may be modified and shared by FRC teams. The code   */
/* must be accompanied by the FIRST BSD license file in the root directory of */
/* the project.                                                               */
/*----------------------------------------------------------------------------*/
/* Written by T0xicFail                                                       */
/* (c) 2014                                                                   */
/*----------------------------------------------------------------------------*/
package edu.wpi.first.wpilibj.templates;

import edu.wpi.first.wpilibj.DriverStationLCD;
import edu.wpi.first.wpilibj.Joystick;
import edu.wpi.first.wpilibj.SpeedController;
import edu.wpi.first.wpilibj.Talon;
import edu.wpi.first.wpilibj.Solenoid;
import edu.wpi.first.wpilibj.Compressor;
import edu.wpi.first.wpilibj.RobotDrive;
import edu.wpi.first.wpilibj.IterativeRobot;
import edu.wpi.first.wpilibj.Timer;

public class Voltage2014 extends IterativeRobot {

    private RobotDrive Drive;
    private Solenoid LeftLowGear, LeftHighGear, RightLowGear, RightHighGear; // Gear Shift
    private Joystick Controller;
    private Compressor Compressor;
    private SpeedController FrontLeft, FrontRight, BackLeft, BackRight;
    private final DriverStationLCD lcd = DriverStationLCD.getInstance();
    private boolean HasShifted;

    public void robotInit() {
        RobotDriveInit();
        CompressorInit();
        ControllerInit();
        TalonInit();

        HasShifted = false;
    }
    

    public void RobotDriveInit() {
        Drive = new RobotDrive(FrontLeft, FrontRight, BackLeft, BackRight);
    }

    public void CompressorInit() {
        Compressor = new Compressor(1, 1);// Digital I/O, Relay
        LeftLowGear = new Solenoid(2);
        LeftHighGear = new Solenoid(3);
        RightLowGear = new Solenoid(4);
        RightHighGear = new Solenoid(5);
    }

    public void ControllerInit() {
        Controller = new Joystick(1);
    }

    public void TalonInit() {
        FrontLeft = new Talon(1);
        FrontRight = new Talon(2);
        BackLeft = new Talon(3);
        BackRight = new Talon(4);
    }

    public void autonomousPeriodic() {
    }

    public void teleopPeriodic() {
        //Drive
        Drive.arcadeDrive(getDeadZone(Controller.getY(), 0.25),
                getDeadZone(Controller.getThrottle(), 0.25) * 0);

        // Compressor
        if (Controller.getRawButton(1)) {
            Compressor.start();
            lcd.println(DriverStationLCD.Line.kUser1, 1, "Compressor: ON ");
        } else if (Controller.getRawButton(2)) {
            Compressor.stop();
            lcd.println(DriverStationLCD.Line.kUser1, 1, "Compressor: OFF");
        }

        // Shifter
        if (Controller.getRawButton(5) && !HasShifted) {
            LeftHighGear.set(true);
            RightHighGear.set(true);
            Timer.delay(0.1);
            LeftLowGear.set(false);
            RightLowGear.set(false);
            HasShifted = true;
            lcd.println(DriverStationLCD.Line.kUser2, 1, "Speed: High");
            lcd.updateLCD();
        } else if (Controller.getRawButton(5) && HasShifted) {
            LeftLowGear.set(true);
            RightLowGear.set(true);
            Timer.delay(0.1);
            LeftHighGear.set(false);
            RightHighGear.set(false);
            HasShifted = false;
            lcd.println(DriverStationLCD.Line.kUser2, 1, "Speed: Low ");
            lcd.updateLCD();
        }

    }

    private double getDeadZone(double num, double dead) {
        if (num < 0) {
            if (num < dead) {
                return num;
            } else {
                return 0;
            }
        } else {
            if (num > dead) {
                return num;
            } else {
                return 0;
            }
        }
    }

    public void testPeriodic() {

    }

}