now if run this code
#!/usr/bin/perl
use strict;
use warnings;
use Net::SSH::Perl;
my $ip="xxx.xxx.xxx.xxx";
my $user = "xxxxx";
my $pass = "xxxx";
my $ssh = Net::SSH::Perl->new($ip, use_pty => 1);
$ssh->login($user, $pass);
it is giving the following error....what to do now
Can't locate Math/Pari.pm in @INC (@INC contains: /etc/perl /usr/local
+/lib/perl/5.10.1 /usr/local/share/perl/5.10.1 /usr/lib/perl5 /usr/sha
+re/perl5 /usr/lib/perl/5.10 /usr/share/perl/5.10 /usr/local/lib/site_
+perl .) at /usr/local/share/perl/5.10.1/Net/SSH/Perl/Util/SSH2MP.pm l
+ine 6.
BEGIN failed--compilation aborted at /usr/local/share/perl/5.10.1/Net/
+SSH/Perl/Util/SSH2MP.pm line 6.
Compilation failed in require at /usr/local/share/perl/5.10.1/Net/SSH/
+Perl/Util.pm line 56.
BEGIN failed--compilation aborted at /usr/local/share/perl/5.10.1/Net/
+SSH/Perl/Kex/DH1.pm line 10.
Compilation failed in require at /usr/local/share/perl/5.10.1/Net/SSH/
+Perl/Kex.pm line 6.
BEGIN failed--compilation aborted at /usr/local/share/perl/5.10.1/Net/
+SSH/Perl/Kex.pm line 6.
Compilation failed in require at /usr/local/share/perl/5.10.1/Net/SSH/
+Perl/SSH2.pm line 6.
BEGIN failed--compilation aborted at /usr/local/share/perl/5.10.1/Net/
+SSH/Perl/SSH2.pm line 6.
Compilation failed in require at /usr/local/share/perl/5.10.1/Net/SSH/
+Perl.pm line 55.