Error "There is no argument given .... parameter 'x' of 'Mathf.Atan2"

Getting Started
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1

Hello,

I am currently at an impass with a script I am writing. Below is the code. As you can see, I am trying to find the angle for an object to point at so that it follows the mouse. I am very close to finishing this, but I am getting an error from my 27th line.

" Assets\CannonScript.cs(27,30): error CS7036: There is no argument given that corresponds to the required formal parameter ‘x’ of ‘Mathf.Atan2(float, float)’ "

 cannonAngle = (Mathf.Atan2((realMouseLocation.x, realMouseLocation.y)) * Mathf.Rad2Deg);

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CannonScript : MonoBehaviour
{
    public Vector3 mouseLocation = Vector3.zero;
    public Vector3 realMouseLocation = Vector3.zero;
    public Vector3 cameraLocation = Vector3.zero;
    public float cannonAngle = 0.0f;

    // Start is called before the first frame update
    void Start()
    {
       
    }

    // Update is called once per frame
    void Update()
    {
        mouseLocation = Input.mousePosition;
        realMouseLocation = Camera.main.ScreenToWorldPoint(mouseLocation);
        cameraLocation = CameraScript.CameraPosition;
        cameraLocation.z = 0.0f;
        realMouseLocation = realMouseLocation - (gameObject.transform.position - cameraLocation);
        Debug.Log(realMouseLocation);
        cannonAngle = (Mathf.Atan2((realMouseLocation.x, realMouseLocation.y)) * Mathf.Rad2Deg);
        Debug.Log(cannonAngle);
    }
}

Pretty please help me understand why this error is being thrown and what I am not understanding here. If you guys have a better way to complete this task please enlighten me.

2

You’re close! Your parentheses are wrong.

Take a closer look.

You are passing ONE argument into Mathf.Atan2() and it wants two arguments.

SUPER easy mistake to make.