Did you copy and paste the code? Because it sounds like you missed a comma. (i.e. you have
print SCALAR "\n"; in place of
print SCALAR, "\n";). If not, your copy of
Params::Validate was not correctly built. I just downloaded v0.95 from CPAN and have no problem, using the pure Perl version. You may wish to try downloading the tarball from
http://search.cpan.org/CPAN/authors/id/D/DR/DROLSKY/Params-Validate-0.95.tar.gz, expanding it and copying
Params-Validate-0.95/lib/Params/Validate.pm and
Params-Validate-0.95/lib/Params/ValidatePP.pm into
C:\Perl\site\lib\Params, deleting
ValidateXS.pm and
Validate.xs while you are there. Once this is done, try the script again.
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