[JS] Object reference not set to an instance of an object

Unity Engine
1

Hello Community,

i have a little problem with my JS code.

var txtRadio : GUIText;

In the Update function:
txtRadio.text = (RadioName + ": " + CurrMusic.name);

This is just the little part of the whole Script, but i think it is enaught.
So what it does: It displays the name of the Radioname and the current Musikname on a GUIText.

This is the Error i get:
NullReferenceException: Object reference not set to an instance of an object
Radio.Update () (at Assets/Scripts/Radio.js:86)

Thanks if somone can help me, i tried some stuff out but the Error is still there.

2

That error means the component you are trying to access is invalid.

Can you show your entire script? How are you accessing currMusic?

3

Hey,

this is the entire script:

var Radion = 1;
var RadioName : String;

var _Radio_Gela_Express : AudioClip[];
var _RDS : AudioClip[];
var _RTL_102_5 : AudioClip[];
var _M2O : AudioClip[];
var _radioMargherita : AudioClip[];
var _KissKiss : AudioClip[];

private var CurrMusic : AudioClip;

private var R1CM : AudioClip;
private var R2CM : AudioClip;
private var R3CM : AudioClip;
private var R4CM : AudioClip;
private var R5CM : AudioClip;
private var R6CM : AudioClip;

private var R1 : AudioSource;
private var R2 : AudioSource;
private var R3 : AudioSource;
private var R4 : AudioSource;
private var R5 : AudioSource;
private var R6 : AudioSource;

private var R1N = "Radio Gela Express";
private var R2N = "RDS";
private var R3N = "RTL 102.5";
private var R4N = "M2O";
private var R5N = "Radio Margherita";
private var R6N = "Radio Kiss Kiss";

var txtRadio : GUIText;

function Start()
{
    R1 = gameObject.AddComponent(AudioSource);
    R2 = gameObject.AddComponent(AudioSource);
    R3 = gameObject.AddComponent(AudioSource);
    R4 = gameObject.AddComponent(AudioSource);
    R5 = gameObject.AddComponent(AudioSource);
    R6 = gameObject.AddComponent(AudioSource);

    R1.loop = false;
    R2.loop = false;
    R3.loop = false;
    R4.loop = false;
    R5.loop = false;
    R6.loop = false;

    R1.dopplerLevel = 0;
    R1.minDistance = 1;
    R1.maxDistance = 3;

    R2.dopplerLevel = 0;
    R2.minDistance = 1;
    R2.maxDistance = 3;

    R3.dopplerLevel = 0;
    R3.minDistance = 1;
    R3.maxDistance = 3;

    R4.dopplerLevel = 0;
    R4.minDistance = 1;
    R4.maxDistance = 3;

    R5.dopplerLevel = 0;
    R5.minDistance = 1;
    R5.maxDistance = 3;

    R6.dopplerLevel = 0;
    R6.minDistance = 1;
    R6.maxDistance = 3;

    Radion = Random.Range(1,6);
}

function Update()
{
    Swicht();
    Radios();
    Tracks();
    txtRadio.text = (RadioName + ": " + CurrMusic.name);
}

function Radios()
{
    if(Radion == 1)
    {
        R1.mute = false;
        RadioName = R1N;
        CurrMusic = R1.clip;
    }
    else
    {
        R1.mute = true;
    }

    if(Radion == 2)
    {
        R2.mute = false;
        RadioName = R2N;
        CurrMusic = R2.clip;
    }
    else
    {
        R2.mute = true;
    }

    if(Radion == 3)
    {
        R3.mute = false;
        CurrMusic = R3.clip;
        RadioName = R3N;
    }
    else
    {
        R3.mute = true;
    }

    if(Radion == 4)
    {
        R4.mute = false;
        CurrMusic = R4.clip;
        RadioName = R4N;
    }
    else
    {
        R4.mute = true;
    }

    if(Radion == 5)
    {
        R5.mute = false;
        CurrMusic = R5.clip;
        RadioName = R5N;
    }
    else
    {
        R5.mute = true;
    }

        if(Radion == 6)
    {
    R6.mute = false;
    CurrMusic = R6.clip;
    RadioName = R6N;
    }  
    else
    {
        R6.mute = true;
    }
}

function Tracks()
{
    if(!R1.isPlaying)
    {
        R1.clip = _Radio_Gela_Express[Random.Range(0,_Radio_Gela_Express.length)];
        R1.Play();
    }
    if(!R2.isPlaying)
    {
        R2.clip = _RDS[Random.Range(0,_RDS.length)];
        R2.Play();
    }
    if(!R3.isPlaying)
    {
        R3.clip = _RTL_102_5[Random.Range(0,_RTL_102_5.length)];
        R3.Play();
    }
    if(!R4.isPlaying)
    {
        R4.clip = _M2O[Random.Range(0,_M2O.length)];
        R4.Play();
    }
    if(!R5.isPlaying)
    {
        R5.clip = _radioMargherita[Random.Range(0,_radioMargherita.length)];
        R5.Play();
    }
    if(!R6.isPlaying)
    {
        R6.clip = _KissKiss[Random.Range(0,_KissKiss.length)];
        R6.Play();
    }
}

function Swicht()
{
    Radion = Mathf.Clamp(Radion,1,6);
    //Debug.Log("Swicht function in action");
    if(Input.GetAxis("Mouse ScrollWheel") < 0 || Input.GetKeyUp(KeyCode.KeypadMinus))
    {
        Radion--;
    }
    if(Input.GetAxis("Mouse ScrollWheel") > 0 || Input.GetKeyUp(KeyCode.KeypadPlus))
    {
        Radion++;
    }
}

The joke is, that the script is working perfect, the line where the Error is, is working perfect, but I can´t see that Error coming up on every start anymore.