koobas.hobune.stream
'Object reference not set to an instance of an object' error incorrect?
I've been working on an RTS concept for a few days now, and just ran into a problem that I can't seem to solve. Having made a placeholder for the first unit, I needed to give it a reference to an instance of the building that spawned it. However, even though it has a reference to the instance, and the script it's trying to get the 'flagPos' variable from, I still get the 'NullReferenceException: Object reference not set to an instance of an object' error. What confuses me the most, though, is that the script functions just fine, but the error is still there to spam my console. I could just ignore it, but being a perfectionist I'd rather not have an error stressing me out for the rest of the project.
The line in question is target = spawner.GetComponent<struc_Headquarters>().flagPos;
public class unit_Soldier : MonoBehaviour {
//The Game Object that created this unit
public GameObject spawner;
Vector3 target;
Vector3 previousTarget;
Transform myTransform;
float distance;
float distanceToTarget;
bool arrivedAtFlag;
void FixedUpdate()
{
target = spawner.GetComponent<struc_Headquarters>().flagPos;
transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.LookRotation(new Vector3(target.x, transform.position.y, target.z) - transform.position), 5 * Time.deltaTime);
}
}
Do you lose the connection to spawner at any point by disabling it for example?
Try to set the spawner in Start() or even Awake(), just to check it.
That does indeed work, actually, but how would I proceed to set it to a specific instance without getting any others in Start() or Awake()? All I can think of is FindGameObjectWithTag().
The problem might be that prefabs, like your Units, are not able to store references to GameObjects. So you need to get the reference on start.
You can use FindGameObjectWithTag or maybe FindGameObjectOfType
I agree the problem might be with prefabs
