Error when building : ArgumentOutOfRange Exception

Question

Hi everyone,

We are working on a point & click project on unity 5.0. Everything works fine. Then we launched a build for PC & another for Mac with just a level to test the performances. And then something strange occurred.

The player doesn't respond, and the action button detect the click but do nothing. Then we tried another build, with "development build" to see what's going on. And then, we saw that we have a repetition of the same error:

" ArgumentOutOfRange Exception : Argument is out of Range. Parameter name: index"

we don't know where its come from. Does anyone has an idea ?

thx a lot for any help you can provide us.

Answer 1

Answer by jgodfrey · May 20, 2016 at 01:18 AM

Isn't there more to the error (like a source file and line number?). Anyway, that's not much to go on, but...

Somewhere in your code, you're accessing a collection (list, array, etc) by an index value, and that value is outside the valid range of items in the collection. For instance, the following code will generate that error:

 var myList = new List<string>() { "a", "b", "c" };
 var s = myList[3];

... since the valid index range for the "myList" collection is 0-2.

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Rendal_16 · May 20, 2016 at 01:56 PM 0

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Thx but what's strange is that we haven't any error of this type in the project anymore. Only when it's builded. Could it be the index of the scenes in "Build Settings/Scene in build"? thx again.

Error when building : ArgumentOutOfRange Exception

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