IO/Pty error when compiling PERL script - perl

Question

It has been awhile since I have done any PERL programming and I am working on a project where I need to connect to a remote server and get a listing of files. The script is being developed on a Windows 2012 server using ActivePerl.
This is the script that I have put together, from other examples -
#! /usr/bin/env perl
use strict;
use warnings;
use feature qw(say);
use autodie;
use Net::SFTP::Foreign;
# US Server Configuration
use constant {
HOST => "samplehost",
REMOTE_DIR => "sample/remote",
LOCAL_DIR => "sample/local",
PORT => "3235",
USER_NAME => "username",
PASSWORD => "D%password",
DEBUG => "0",
};
my $stfp = Net::SFTP::Foreign->new (
HOST,
timeout => 240,
user => USER_NAME,
password => PASSWORD,
port => PORT,
autodie => 1,
);
#
# List remote directory contents
#
my $remotefiles;
$remotefiles = $stfp->ls(REMOTE_DIR);
#
# Loop through remote files and print each filename
#
foreach ($remotefiles){
my $file = $_;
my $filename = $file->{filename};
if($filename ne "." && $filename ne ".."){
print"the filename is $filename";
}
}
I am receiving an error when I compile it -
C:\development>perl ConvertPDFs.pl
password authentication not available, IO::Pty is not installed or failed to loa
d: Can't locate IO/Pty.pm in #INC (#INC contains: C:/Perl64/site/lib C:/Perl64/l
ib .) at C:/Perl64/site/lib/Net/SFTP/Foreign/Backend/Unix.pm line 256.
at ConvertPDFs.pl line 20.
Not sure what the problem is.

Answer 1

Pseudo-ttys are a unix construct. If a module requires IO::Pty, it won't run on Windows (though maybe on cygwin). On the plus side, the error message makes it sound like Net::SFTP::Foreign only uses IO::Pty for password-based authentication, so you could avoid the problem by switching to key-based authentication.