It's not an error, it's a warning. You're getting it because you're using 'use warnings;'. The compiler noticed that there is only one use of $main::Objects in your script -- you create it, but never use it for anything -- and emitted the warning because normally when an object is created, it is eventually used in some way.

If you use $main::Objects, the warning will go away.

In reply to Re: "main::Objects" used only once: possible typo by hilitai
in thread "main::Objects" used only once: possible typo by vinoth.ree

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