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StartCoroutine NullReferenceException: Object reference not set to an instance of an object
No doubt this has been answered somewhere else that I couldn't find but I am very new to this and the youtube video I watched didn't have this error. The error is
NullReferenceException: Object reference not set to an instance of an object
This is the line it says is bad:
 StartCoroutine(cameraShake.Shake(0.15f, 0.4f));
This is at the top of the page defining cameraShake:
 public CameraShake cameraShake;
This is the code for the coroutine: public class CameraShake : MonoBehaviour {
     public IEnumerator Shake (float duration, float magnitude)
     {
         Debug.Log("In IEnumerator");
         Vector3 originalPos = transform.localPosition;
 
         float elapsed = 0f;
 
         while (elapsed < duration)
         {
             float x = Random.Range(-1f, 1f) * magnitude;
             float y = Random.Range(-1f, 1f) * magnitude;
             Debug.Log("x: " + x);
             Debug.Log("y: " + y);
             transform.localPosition = new Vector3(x, y, originalPos.z);
 
             elapsed += Time.deltaTime;
 
             yield return null;
         }
 
         transform.localPosition = originalPos;
     }
 }
As I said, I have no clue, thanks for taking the time to read this, even if you didn't help.
Answer by andrew-lukasik · Apr 05, 2020 at 11:18 AM
 #if DEBUG
 if( cameraShake==null ) Debug.LogWarning($"You forgot to assign '{nameof(cameraShake)}' field in the inspector",gameObject);
 #endif
 
 StartCoroutine(cameraShake.Shake(0.15f, 0.4f));
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