Help implementing GUI in C#

I have done some scripting in javascript and have had a GUI working fine. I am now trying to move over to C#. I cannot seem to get started with even the simplest of functions. Please help. What is wrong with the code below:

using System;
using UnityEngine;

public class Test : MonoBehaviour
{
     void OnGUI()
     {
          GUI.Button(Rect(10,10,10,10),"Test");
     }
}

I keep getting an error

I know i’m missing something really simple!! :sweat_smile:

GUI.Button(Rect(10,10,10,10),“Test”);

into

GUI.Button(new Rect(10,10,10,10),“Test”);

Thanks Thomas!!