You've received several good answers. If you are still puzzled with the reason and need more help, you should post your code (or, if the code is large, rather the smallest subset of your code producing the warning) as well as the complete warning message.

In reply to Re: what does "use of uninitialized value" really mean? by Laurent_R
in thread what does "use of uninitialized value" really mean? by rocketperl

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