Net::Google::DataAPI was last updated in 2014, and the testers matrix doesn't look good, especially on recent versions of Perl. Unfortunately I'm having trouble accessing the CPAN Testers reports at the moment, but it seems like you've run into Bug #124866. Unfortunately the GitHub repo hasn't really seen activity either. If it were me, I would stay away from this module as web APIs tend to evolve relatively rapidly and unfortunately an unmaintained module is unlikely to be very helpful. In fact, as far as I can tell, most GData APIs have shut down anyway. What are you trying to access? Maybe someone can suggest a better module.