NullReferenceException

Unity Engine
1

I just started making my game and it was working fine, the damage system was working with the attack button but i was doing some other coding not even effecting the button script or the scripts it was referencing and it started giving me this error.

NullReferenceException: Object reference not set to an instance of an object
PlayerAttack.PlayerAttackEnemy () (at Assets/Scripts/PlayerAttack.cs:14)

PlayerAttacks Script:

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

public class PlayerAttack : MonoBehaviour
{

    public GameObject Player; 

    public void PlayerAttackEnemy()
    {
        Player = GameObject.Find("Player");
        PlayerManager PlayerManager = Player.GetComponent<PlayerManager>();
        PlayerManager.playerAttack = true;

    }

}


}

And the PlayerManager Script:

public class PlayerManager : MonoBehaviour
{
    //Variables
    public int maxHealthP = 15;
    public int curHealthP = 15;
    public int playeLevel = 1;
    public int damageP = 1;

    public bool playerAttack;

    public GameObject Enemy;

    private void Start()
    {
        Enemy = GameObject.Find("Enemy");
        playerAttack = false;
    }

    //Take Damage
    public void TakeDamagePlayer(int damage)
    {
        curHealthP -= damage;
        Debug.Log(curHealthP);
    }

    //Do Damage
    void DoDamagePlayer(int damage)
    {
        EnemyManager EnemyManager = Enemy.GetComponent<EnemyManager>();
        EnemyManager.TakeDamageEnemy(damage);
    }

    //Attack
    void Attack(int damage)
    {
        DoDamagePlayer(damage);
        playerAttack = false;
    }

    //Die
    void Die()
    {
        Object.Destroy(this);
    }


    void FixedUpdate()
    {
        if (playerAttack == true)
        {
            Attack(damageP);
        }

        if (curHealthP >= 0)
        {
            Die();
        }

    }

}

Thanks in advance

2

Line 15 is actually line 14 in the button script, i messed up the formatting and its not letting me fix it

3

Most likely, PlayerManager is null on line 14/15. You should learn to use the IDE’s debugger, then you can find the cause of these errors in a minute.