Get the colliders transform (?)

I’m not really sure how to put this but i get a NullReferenceException error in the AITrigger script, probably because the collider doesn’t have a transform attached to it but i need to access the transform on the same gameobject as the collider is attached to. The question is how? Here is the scripts (Only relevant parts):

AITrigger.cs

	void OnTriggerEnter(Collider other) {
		if (IsEnemy == "Yes") {
			if(other.gameObject.tag == "Friendly" || other.gameObject.tag == "Player") {
				PlayerPrefs.SetString(gameObject.name, "Yes");
				AIPath AIPath = GetComponent<AIPath>();
				sendthis = other.transform;
				AIPath.SetTarget(sendthis);
			}
		}
		if (IsEnemy == "No") {
			if(other.gameObject.tag == "Enemy") {
				PlayerPrefs.SetString(gameObject.name, "Yes");
				AIPath AIPath = GetComponent<AIPath>();
				sendthis = other.transform;
				AIPath.SetTarget(sendthis);
			}
		}
	}

AIPath.cs

public void SetTarget (Transform x) {
		target = x;
}

Somehow after refreshing the script it did work… Anyway thanks for all the suggestions!