It would appear, for whatever reason, the
-label argument isn't being interpreted as being true.
Yet you seem to set it just as the tutorial example showed.
I could not find the Bio::Graphics module in CPAN, so I couldn't look up the documentation (occasionally tutorial code examples are wrong and it helps to track down the documentation directly).
You may be able to find the module in something like:
/usr/lib/perl5/site_perl
and running
find . |grep Bio |grep Graphics
Alternatively if you're on windows, open explorer, go to your Perl installation directory (C:\Perl\?) and then from the explorer window right-click on the directory name, select search, and type in Graphics.pm.
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