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Question by nowletsstart · Apr 04, 2016 at 08:40 PM · c#script.initialisation

"Error CS0201: Only assignment, call, increment, decrement, and new object expressions can be used as a statement" when running game

I have seen a number of posts on this issue but they don't seem to solve my problem. I am creating a game object from a c# script and get the above stated error when I run the code. Please see my script below:

 using UnityEngine;
 using System.Collections;
 
 public class TestingPositions : MonoBehaviour {
 
     GameObject hero;
     Sprite heroSprite;
     Vector3 heroPosition;
     // Use this for initialization
     void Start () {

             Instantiate (hero, heroPosition, Quaternion.identity) as GameObject;
         Camera camera = GetComponent<Camera>();
         heroPosition = camera.ScreenToWorldPoint(new Vector3(Screen.width/2, Screen.height/2, camera.nearClipPlane));
         heroSprite = Resources.Load <Sprite> ("Sprites/heroImage");
         SpriteRenderer renderer = hero.AddComponent<SpriteRenderer>();        renderer.sprite = heroSprite;
     }
 }

The error is pointing to the line:

 Instantiate (hero, heroPosition, Quaternion.identity) as GameObject;

  



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Answer by Brocccoli · Apr 04, 2016 at 08:54 PM

You're using the "as" keyword and you aren't assigning the return value to anything.

Why not

    GameObject myObject = Instantiate(x, y, z) as GameObject;


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avatar image nowletsstart · Apr 04, 2016 at 10:43 PM 0
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Now I am getting another error:

 ArgumentException:The thing you want to instantiate is null.  `UnityEngine.Object.CheckNullArgument(System.Object, System.string message)
avatar image Brocccoli nowletsstart · Apr 05, 2016 at 11:25 PM 0
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The thing you want to instantiate is not assigned a value. Just assign it to something.

I suppose I should edit my answer.

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