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vsphere perl SDK バージョン 5.5 が centos 7 64 ビット マシンにインストールされている

次の simpleclient.pl( https://pubs.vmware.com/vsphere-55/index.jsp#com.vmware.perlsdk.pg.doc/viperl_modscripts.4.2.html#990705 ) スクリプトは、エラー「length() used」をスローします。 /usr/lib64/perl5/IO/Compress/Zlib/Extra.pm の 198 行目で @array ("scalar(@array)" のことですか?) centos-7 64ビットマシン上。

root@localhost vsphere_perl_exp]# cat simpleclient.pl
#!/usr/bin/perl
use strict;
use warnings;
use VMware::VIRuntime;

my %opts = (
    entity => {
    type => "=s",
    variable => "VI_ENTITY",
    help => "ManagedEntity type: HostSystem, etc",
    required => 1
    },
    );
Opts::add_options(%opts);
Opts::parse();
Opts::validate();

Util::connect();

# Obtain all inventory objects of the specified type
my $entity_type = Opts::get_option('entity');
my $entity_views = Vim::find_entity_views(
    view_type => $entity_type);


[root@localhost vsphere_perl_exp]# perl --version

This is perl 5, version 16, subversion 3 (v5.16.3) built for x86_64-linux-thread-multi
(with 25 registered patches, see perl -V for more detail)

Copyright 1987-2012, Larry Wall

Perl may be copied only under the terms of either the Artistic License or the
GNU General Public License, which may be found in the Perl 5 source kit.

Complete documentation for Perl, including FAQ lists, should be found on
this system using "man perl" or "perldoc perl".  If you have access to the
Internet, point your browser at http://www.perl.org/, the Perl Home Page.

デバッグ オプションを指定して perl を実行すると、11 行目で停止します。

[root@localhost vsphere_perl_exp]# perl -d ./simpleclient.pl --server 15.218.113.152 --username root --password 'secret' --entity HostSystem

Loading DB routines from perl5db.pl version 1.37
Editor support available.

Enter h or 'h h' for help, or 'man perldebug' for more help.

main::(./simpleclient.pl:6):    my %opts = (
main::(./simpleclient.pl:7):        entity => {
main::(./simpleclient.pl:8):        type => "=s",
main::(./simpleclient.pl:9):        variable => "VI_ENTITY",
main::(./simpleclient.pl:10):       help => "ManagedEntity type: HostSystem, etc",
main::(./simpleclient.pl:11):       required => 1
  DB<1> main::(./simpleclient.pl:14):   Opts::add_options(%opts);
  DB<1>

私は perl の初心者ですが、このスクリプトをデバッグするにはどうすればよいですか?

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