You're confusing declaration and initialization. @respt is declared in line 80, but likely, not all elements of @respt are initialized in line 99, or rather, not enough elements. To further debug this, print out the number of elements in @respt:

#line 102
print "Elements in \@respt: ", scalar @respt;

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In reply to Re: uninitialized value seems initialized by Corion
in thread uninitialized value seems initialized by Fisch

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