Custom npc error CS0115

I can't seem to figure out whats wrong with my town npc code
heres the code

using System;
using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Terraria.ID;
using Terraria;
using Terraria.ModLoader;

namespace TutorialMOD.NPCs //We need this to basically indicate the folder where it is to be read from, so you the texture will load correctly
{
public class CustomTownNPC : ModNPC
{
public override bool...

Custom npc error CS0115