onTriggerEnter2D doesn't work

Hey,
I’m new to Unity and try to build my first little Jump 'n Run Test Game now.
I want to collect a coin, but the onTriggerEnter2D method doesn’t work.

void onTriggerEnter2D (Collider2D other)
{
	Debug.Log ("Trigger Entered!");

	// collect a coin
	if (other.gameObject.CompareTag ("Coin")) {
		coinCount++;
		coinsText.text = "Coins: " + coinCount;
		other.gameObject.SetActive(false);
	}
}

I also made a screenshot of my Player and Coin game object: http://imgur.com/a/AgAL8

Maybe somebody has any tipps, I don’t know what’s wrong.

Please try to post more info about your problem. Such as:

My code has this error

My Debug.Log is not firing

Things like that. Just saying it doesn’t work is not very helpful.

So instead of

onTriggerEnter2D

put:

OnTriggerEnter2D

Also, is the script on the player or the coin?

I’m embarrassed! Your hint helped me, thank you very much!
I mistyped OnTriggerEnter2D with a lowercase o… :-/