Error C# unity, cannot use string

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hi guys, been stucking around a couple hours, i wanna ask about unity error
ty for anyone that want to answer this

its said that

Quote:
UnityException: RandomRangeInt is not allowed to be called from a MonoBehaviour constructor (or instance field initializer), call it in Awake or Start instead. Called from MonoBehaviour 'wall' on game object 'Wall'.
See "Script Serialization" page in the Unity Manual for further details.
UnityEngine.Random.Range (System.Int32 min, System.Int32 max) (at C:/buildslave/unity/build/Runtime/Export/Random/Random.bindings.cs:48)
wall..ctor () (at Assets/Scripts/wall.cs:11)

and this is the code

public class wall : MonoBehaviour
{

    public Vector3 spawnPoint;

    private Transform camPos;
    private int ranXPos = Random.Range(-5, 6);

    void Start()
    {
        transform.position = new Vector3(ranXPos, spawnPoint.y, spawnPoint.z);
        camPos = GameObject.Find("Main Camera").GetComponent<Transform>();
    }


    void Update()
    {
        transform.position += Vector3.back;

        if (transform.position.z < camPos.position.z)
        {
            Destroy(gameObject);
        }
    }
}

EDIT: got new problem where i cant use string
this is the code

<pre><pre>got the problem like that,anyone know why i cant use string?

<pre>    

public class player : MonoBehaviour
{
    public Text distancemoved;
    public float speed;
    float distanceunit = 0;
    public Rigidbody rigid;

    void Start()
    {
................
................
}
    void distance() {
        int distanceunit = 0;
        distanceunit = distanceunit + 1;
        distancemoved = distanceunit.ToString();
    }
}

ty guys
anyone can help?
ty guys

What I have tried:

trying to rewrite here and there but solve nothing. Im very new to the programming

Posted 21-Jul-19 1:18am

Member 14536847

Updated 22-Jul-19 5:34am

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Richard MacCutchan · Accepted Answer · 2019-07-21T01:43:00

Quote:
UnityException: RandomRangeInt is not allowed to be called from a MonoBehaviour constructor (or instance field initializer), call it in Awake or Start instead. Called from MonoBehaviour 'wall' on game object 'Wall'.

You are trying to use it in your instance initializer:

C#

private int ranXPos = Random.Range(-5, 6);

So move the initialization to your Start method.

C#

private int ranXPos;

void Start()
{
    ranXPos = Random.Range(-5, 6);
    transform.position = new Vector3(ranXPos, spawnPoint.y, spawnPoint.z);
    camPos = GameObject.Find("Main Camera").GetComponent<Transform>();
}