UnassignedReferenceException (Didn't find a solution)

Questions & Answers
1

I’m a beginner on unity and I have this problem:
UnassignedReferenceException: The variable TEXT1 of Player has not been assigned
109682-capture.jpg

And this is my main script:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;
public class Player : MonoBehaviour {

    public GameObject camcam;
    public GameObject score;
    public GameObject Button;
    public GameObject PANEL1;
    public GameObject TEXT1;
    public GameObject TEXT2;
    public int scoremac;
    public double Ytodie;
    public string NextLVL;
    public string ThisLVL;

    public static int pointage = 0;
    void Start() {
        PANEL1 = GameObject.FindWithTag("Panel");
        TEXT1 = GameObject.FindWithTag("txt1");
        TEXT2 = GameObject.FindWithTag("txt2");
        pointage = 0;
        PANEL1.SetActive(false);
        TEXT1.SetActive(false);
        TEXT2.SetActive(false);
        score.GetComponent<Text>().text = "Score: " + pointage;
        Button.SetActive(false);
    }

    // Update is called once per frame
    void Update()
    {
        AdjustCam();
        CheckKeys();
        CheckScore();
        CheckifFall();
    }
    bool boff = false;
    void CheckifFall()
    {
        if(boff == false)
        {
            if (gameObject.transform.position.y < Ytodie)
            {
                StartCoroutine(Timer2());
            }
        }
       
    }

    public void OnClick()
    {
        TEXT1.SetActive(true);
        TEXT2.SetActive(true);
        PANEL1.SetActive(true);
        StartCoroutine(LoadLevelsPro());

    }
    IEnumerator Timer2()
    {
        
        yield return new WaitForSeconds(1);
        pointage = 0;
        SceneManager.LoadScene(ThisLVL);
    }

    IEnumerator LoadLevelsPro()
    {
        Button.SetActive(false);
        yield return new WaitForSeconds(1);
        AsyncOperation loading = SceneManager.LoadSceneAsync(NextLVL);
        while (!loading.isDone)
        {
            yield return null;
        }
    }


    void CheckScore()
    {
        if (pointage <= scoremac)
        {
            score.GetComponent<Text>().text = "Score: " + pointage;

        }
        else
        {
            score.GetComponent<Text>().color = Color.green;
            score.GetComponent<Text>().text = "Victoire!";
            boff = true;
            Button.SetActive(true);
        }
    }

    void CheckKeys()
    {
        float mouvHorizontal = Input.GetAxis("Horizontal");
        float mouvVertical = Input.GetAxis("Vertical");
        Vector3 mouvement = new Vector3(mouvHorizontal, 0, mouvVertical);
        gameObject.GetComponent<Rigidbody>().AddForce(mouvement * 120 * Time.deltaTime);
    }

    void AdjustCam()
    {
        camcam.transform.position = new Vector3(gameObject.transform.position.x,
          gameObject.transform.position.y + 5,
          gameObject.transform.position.z - 10);
    }
}

This is an example:
109683-capture.jpg

2

This error means that your TEXT1 variable is null. This means it doesn’t point to a valid object, which means in your case, that the TEXT1 = GameObject.FindWithTag("txt1"); call failed or wasn’t even called in the first place. When you do stuff like that you should always check for null before you use the object:

if(TEXT1 == null)
{
    Debug.LogError("TEXT1 is null");
    return;
}