[Cgi-session-user] Problem With CGI::Session v. 4.20 while generating a new session

[<Ulr...@qi...>]

Hello @all,=20

I just wanted to create a new session and got some errors. My code is
the folowing:

use strict;
use Env;
use File::Basename;
use DBI;
use lib dirname(__FILE__) . '';
use CGI;
use CGI::Carp "fatalsToBrowser";
use CGI::Session;
use CGI::Session::ID::md5;
use Digest::MD5  qw(md5 md5_hex md5_base64);

my $sid =3D md5($ENV{UNIQUE_ID});
my $cgi =3D new CGI;

#print "Content-Type: text/html\n\n";
print $cgi->start_html(

	-title  =3D> 'Switch.cgi',
	-author =3D> 'Ulr...@qi...'
);
#print $sid;
my $session =3D new CGI::Session(undef, undef,
{Directory=3D>'/tmp/session'}) or die CGI::Session->errstr;
$sid =3D $session->id();
print $sid;

The error-message is the folowing:

session.cgi: Use of uninitialized value in concatenation (.) or string
at /opt/webserver/software/perl/lib/5.6.1/CGI/Session.pm line 128.
Can't locate object method "generate_id" via package
"CGI::Session::ID::" at
/opt/webserver/software/perl/lib/5.6.1/CGI/Session.pm line 74.

I'm using Perl-Version 5.6.1
CGI.pm has the version 3.05
And Session.pm has the version 4.20

Can someone tell me why it doesn't work

Kind Regards Ulrich