I get this error: IndexOutOfRangeException: Array index is out of range.

Scripting
1

Hi,

I keep getting this error message. I already used google to find a solution but they don`t seem to work out for me.
This is the error:

IndexOutOfRangeException: Array index is out of range.
SittingPeopleControlScript.Update () (at Assets/SittingPeopleControlScript.js:32)

This is my code:

#pragma strict

var Player : Transform;

public var People : GameObject[];
var Individual = 0;

var PeopleScript : HumanSittingScript;
var SampleDis : float;

var Looping : boolean = true;


function Start () {

//Individual = Random.Range(0,People.length);
Individual = 0;
}

function Update () {

    //Assign Instances

    if (Looping)
    {
        //next individual
        if (Individual > (People.length-1)) {Individual = 0;}else{Individual += 1;}
       
        //Return variables first
        PeopleScript = People[Individual].GetComponent(HumanSittingScript);
        SampleDis = Vector3.Distance(People[Individual].transform.position, Player.position);
       
        if (SampleDis > 75)
            {
                if (People[Individual].active)
                    {
                    PeopleScript.Respawn();
                    }
            }
            else
            {
                if (!People[Individual].active)
                    {
                    People[Individual].active = true;
                    PeopleScript.Initiate ();
                    }
            }
    }   
   
   
}

Can anybody help me?

2

You have a logic error in your if statement on line 27.
I suggestion, set a breackpoint and step thru your code inspecting the variable Individual.

3

Excuse me, but I dont really get what youre saying.

4 
if (Individual > (People.length-1)) {Individual = 0;}else{Individual += 1;}

This line can set the index to the value which is equal to the length of the array because you increment the ā€˜individualā€™ variable although it may already be the highest value which is valid as an index in this context.

Example:

  • length is 10, length -1 = 9
  • individual is already 9

9>9 => false, the else-part is run , individual will be incremented to 10, afterwards you would try to access People[10] in this given example which is an invalid index.

1 Like
5

I upgraded a project from 4.5 to 4.6 and also see this error spammed in the editor:
IndexOutOfRangeException: Array index is out of range.
SyntaxTree.VisualStudio.Unity.Bridge.WinPath.Combine (System.String left, System.String right)
SyntaxTree.VisualStudio.Unity.Bridge.UnityProject.Folders ()
SyntaxTree.VisualStudio.Unity.Bridge.UnityProject+<>c__DisplayClass18.b__15 ()
SyntaxTree.VisualStudio.Unity.Bridge.UnityProject.ItemGroup (System.IO.TextWriter w, System.Action a)
SyntaxTree.VisualStudio.Unity.Bridge.UnityProject.Serialize (System.IO.TextWriter w)
SyntaxTree.VisualStudio.Unity.Bridge.ProjectFile.WriteIfNecessary (SyntaxTree.VisualStudio.Unity.Bridge.FileGenerationHandler generationHandler)
SyntaxTree.VisualStudio.Unity.Bridge.ProjectFilesGenerator.GenerateProjectFiles ()
SyntaxTree.VisualStudio.Unity.Bridge.ProjectFilesGenerator+<>c__DisplayClass1.<.cctor>b__0 ()
UnityEditor.EditorApplication.Internal_CallUpdateFunctions ()

UPDATE:
Looks like UnityVS needed to be reimported.