Can't call method "architecture" on an undefined value at aws.pl line 18.

##</code><code>##

#!/usr/local/perl-5.23.3/perl

use strict;
use warnings;
use VM::EC2;


my $ec2 = VM::EC2->new(-access_key => "5454fgfffh",
                       -secret_key => "dscsdcsd",
                       -endpoint   => 'http://ec2.amazonaws.com
                             );


#Get image
my $image = $ec2->describe_images('ami-469e1d2a');

# get some information about the image
my $architecture = $image->architecture;
my $description  = $image->description;
my @devices      = $image->blockDeviceMapping;
for my $d (@devices) {
   print $d->deviceName,"\n";
   print $d->snapshotId,"\n";
   print $d->volumeSize,"\n";
}