Sometimes, if you cannot understand the warnings that Perl is giving you, you can use diagnostics; which reveals a slightly more verbose version (with examples sometimes). Here's an abbreviated version of what diagnostics does in your code:

You used the syntax of a method call, but the slot filled by the object or package name contains an expression that returns a defined value....

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In reply to Re: Can't modify subroutine entry in scalar assignment by InfiniteSilence
in thread Can't modify subroutine entry in scalar assignment by Anonymous Monk

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