This worked for me. I tried to condense it a little; also, I turned debugging on: 
#!/usr/bin/perl

use strict;
use warnings;
use Net::SFTP;
use YAML;
use YAML::Dumper;

my $host = 'localhost';
my $user = 'user';
my $pass = 'password';

eval {
    $SIG{ALRM} = sub { die "Net::SFTP timed out\n" };
    alarm 2;
    my $sftp = Net::SFTP->new(
        $host,
        user     => $user,
        password => $pass,
        debug    => 1,
    );

    my $dumper = YAML::Dumper->new;
    $dumper->indent_width(4);
    print $dumper->dump( $sftp->ls('/usr/lib/perl5') );
};
if ($@) {
    chomp $@;
    die "Error: $@ trying to connect to CMS\n";
}
else {
    print "All done!\n";
}

[download]

In reply to Re: local creation still triggers "requires explicit package name" error by Khen1950fx
in thread local creation still triggers "requires explicit package name" error by c84032002

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.