Assets/Scripts/SideWalker.cs(75,23): error CS0176: Static member `UnityEngine.KeyCode.Equals' cannot be accessed with an instance reference, qualify it with a type name instead

Event e = Event.current;
        Debug.Log("Detected key code: " + e.keyCode);
        if (e.keyCode.Equals("leftArrow"))
            transform.Translate(Vector3.left * Time.deltaTime * speed);

Equals is a class function (of KeyCode), not a member function (of e.keyCode)