Need Help With Touch Input

Unity Engine
1

Hello everybody! I am new to Unity and and I am not sure how to use Touch. I created this block of code to make the boolean “jump” true when the player touches the screen. When I try to play I get an error that says:

ArgumentException: Index out of bounds.
CharacterControl.Update () (at Assets/C# Scripts/CharacterControl.cs:23)

Line 23 is “touch = Input.GetTouch (0);” I am not really sure how to fix this or improve so any suggestions are highly appreciated! Thanks in advance!

    private Touch touch;

    void Update(){
        touch = Input.GetTouch (0);
        switch (touch.phase) {
            case TouchPhase.Began:
                jump = true;
                break;
        }
    }
2