Cannot pick up an object in Unity game

Question

I have a PickupTarget object in front of my FirstPersonCharacter which is used for 'holding' picked up object. Somehow, it doesn't work; when I click on the object (Axe) it just stays on the ground.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PickUp : MonoBehaviour {

    public Transform target;

    void Update () {

    }

    void onMouseDown() {
        this.transform.position = target.position;
        this.transform.parent = GameObject.Find ("FirstPersonCharacter").transform;
    }

    void onMouseUp() {
        this.transform.parent = null;
    }
}

I have added PickupTarget as a target of script in Axe object:

This is the structure of my Axe object.

Answer 1

onMouseDown() is just a random function. You aren't calling it from anywhere in your code and Unity won't call it because it's not the MonoBehaviour event method.

You want OnMouseDown().

Same goes for your onMouseUp(): OnMouseUp()

Capitalization matters.

Also make sure that the script the GameObject is attached to has its own Collider component as well.