Key class 'Net::SSH::Perl::Key::RSA' is unsupported: Can't locate Crypt/RSA.pm in @INC (@INC contains: /etc/perl /usr/local/lib/perl/5.10.0 /usr/local/share/perl/5.10.0 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.10 /usr/share/perl/5.10 /usr/local/lib/site_perl .) at /usr/local/share/perl/5.10.0/Net/SSH/Perl/Key/RSA.pm line 14.

You need to install Crypt::RSA.