will need to install and configure cpan.

typicall you will just need to type cpan at the command prompt as root and type yes



then type 

install YAML
install CPAN

at the command line or order to make certain to install YAML as well as CPAN

these two packages are dependents of IO::Prompt I believe

apt-get install gcc libkrb5-dev libcrypt-ssleay-perl libio-socket-ssl-perl libnet-ldap-perl libio-prompt-perl libyaml-perl

cpan install Net::LDAP
type y/yes to all the options

cpan install IO::Prompt

type y/yes to all the options