How do you fix OverflowException: Number overflow

Questions & Answers
1

I am following the Unity Learn tutorial for procedural caves and have just completed the second and third videos. The problem is that when I press play the caves do not appear. There are no errors coming up in Visual Studio but in Unity I am getting the error OverflowException: Number overflow:

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I am pretty sure that it is all written correctly, I could be wrong but I have checked it multiple times. I clicked the error and it took me to this line:

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I am not sure what is wrong. So if anyone could explain it to me and how to fix it that would be great.
Thank you.

2

Hi, the only thing that would explain this error is if nodeCountX or nodeCountY are = 0.

In that case you’re trying to create an array of size -1, which results in an error for obvious reasons.

In other words, the map parameter you’re sending to the SquareGrid method is probably not initialized.