NullReferenceException: Object reference not set to an instance of an object

Question

Hi guys, I'm wondering why am I getting this error at line 26? If I take off the "myText.enabled = false;" part then it works. But I want the text to disappear if the GameObject's Y rotation is between 270 and 0 or between 0 and 90.

var moveSpeed = 50; private var yRotation = 0; function Update () { var z = Input.GetAxis("Vertical") * Time.deltaTime * moveSpeed; transform.Translate(0, 0, z);

 if (Input.GetAxis("Horizontal")) { yRotation += Input.GetAxis("Horizontal") * 2; transform.eulerAngles = Vector3(0, yRotation, 0);

 if (transform.eulerAngles.y &gt; 90 &amp;&amp; transform.eulerAngles.y &lt; 270)
 {
   var myText : GUIText = gameObject.Find ("Wrong Way").GetComponent ("GUIText");
   myText.enabled = true;
 }
 if (transform.rotation.y &lt; 90 || transform.rotation.y &gt; 270)
 {
   myText.enabled = false;
 }

} }

Answer 1

Answer by Justin Warner · Apr 24, 2011 at 03:56 AM

function Update () { if (Input.GetButtonUp("Fire1")) { var myText : GUIText = gameObject.Find ("Wrong Way").GetComponent ("GUIText");

   myText.enabled = true;
 }
 if (Input.GetButtonUp ("Fire2"))
 {
   myText.enabled = false;
 }

Doesn't work. But.

function Update () { var myText : GUIText = gameObject.Find ("Wrong Way").GetComponent ("GUIText"); if (Input.GetButtonUp("Fire1")) {

  myText.enabled = true;
 }
 if (Input.GetButtonUp ("Fire2"))
 {
   myText.enabled = false;
 }

Does work. Just put the var myText line outside of the if statement. =).

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Answer 2

Answer by Joshua · Apr 24, 2011 at 03:57 AM

You declare the var myText in one if() and then reference it in the next. Put the var myText : GUIText..... line three lines higher and you should be good.

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Roncon93 · Apr 24, 2011 at 01:44 PM 0

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Thanks, it worked. I thought that too and even moved the line, but it seems that I moved it a little bit too high. Thanks, again.

Joshua · Apr 24, 2011 at 02:20 PM 0

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Please select on of the answers as the correct one then, so the question won't get bumped up by the bot :)

NullReferenceException: Object reference not set to an instance of an object

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