title: Perl throws "Can't locate Config/YAML.pm in @INC"
body: <p>I'm getting <code>Can't locate Config/YAML.pm in @INC (you may need to install the Config::YAML module)</code> while running a perl script.</p>
  
  <blockquote>
    <p>Can't locate Config/YAML.pm in @INC (you may need to install the
    Config::YAML module) (@INC contains: /etc/perl
    /usr/local/lib/perl/5.18.2 /usr/local/share/perl/5.18.2 /usr/lib/perl5
    /usr/share/perl5 /usr/lib/perl/5.18 /usr/share/perl/5.18
    /usr/local/lib/site_perl .) at myperlscript line 8. BEGIN
    failed--compilation aborted at myperlscript line 8.</p>
  </blockquote>
  
  <p>Line 8 of the script shows <code>use Config::YAML;</code>.
  I'm using Ubuntu and have installed the <code>libdata-yaml-perl</code> and <code>libyaml-perl</code> packages, but still am getting the same error. What else is needed?</p>