in reply to Error with creating new objects

The Namespace is Switch::. Try: 
  my $switch = Switch:: -> new();

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Although, your code works fine for me (perl 5.14).

Update - I did reproduce your problem - the issue is what Grandfather (++) says, below.

The recommendation to use NameSpace:: stands.

             I hope life isn't a big joke, because I don't get it.
                   -SNL

In Section Seekers of Perl Wisdom