NullReferenceException: Object reference not set to an instance of an object — Как решить?

Question

[Sigma_12313]

Делаю бесконечный платформер и столкнулся с такой проблемой
Вот полный вид ошибки: NullReferenceException: Object reference not set to an instance of an object LevelG.Awake()
(at Assets/Scripts/LevelG.cs16)

вот сам код

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

public class LevelG : MonoBehaviour {

    private const float PLAYER_DISTANCE_SPAWN_LEVEL_PART = 200f;

    [SerializeField] private Transform levelPart_Start;
    [SerializeField] private List<Transform> levelPartList;
    [SerializeField] private Player player;

    private Vector3 lastEndPosition;

    private void Awake() {
        lastEndPosition = levelPart_Start.Find("EndPosition").position;

        int startingSpawnLevelParts = 5;
        for (int i = 0; i < startingSpawnLevelParts; i++) {
            SpawnLevelPart();
        }
    }

    private void Update() {
        if (Vector3.Distance(player.GetPosition(), lastEndPosition) < PLAYER_DISTANCE_SPAWN_LEVEL_PART) {
            SpawnLevelPart();
        }
    }

    private void SpawnLevelPart() {
        Transform chosenLevelPart = levelPartList[Random.Range(0, levelPartList.Count)];
        Transform lastLevelPartTransform = SpawnLevelPart(chosenLevelPart, lastEndPosition);
        lastEndPosition = lastLevelPartTransform.Find("EndPosition").position;
    }

    private Transform SpawnLevelPart(Transform levelPart, Vector3 spawnPosition) {
        Transform levelPartTransform = Instantiate(levelPart, spawnPosition, Quaternion.identity);
        return levelPartTransform;
    }

}

Answer 1

[Василий Банников]

Видимо метод Find вернул null.
Читай в документации, от чего это зависит и исправляй