I had tried both blib/lib/Tk and blib/lib. I then noticed with one configuration it complained about not finding Tk. So then I changed the #! /usr/bin/perl statement at the top of the example to what I ususally use on this system:

eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}'
& eval 'exec perl -S $0 $argv:q'
if 0;
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then it worked