Kwalitee Issues


Use a proper tool to make a distribution. You might also need to fix META files if you keep them in the repository.

Error: FLAT


Make sure that the main module name and version are the same of the distribution.


Run a proper command ("make manifest" or "./Build manifest", maybe with a force option), or use a distribution builder to generate the MANIFEST. Or update MANIFEST manually.


  • MANIFEST (41) does not match dist (52):
  • Missing in MANIFEST: Makefile.old, lib/CVS/Entries, lib/CVS/Repository, lib/CVS/Root, lib/, samples/CVS/Entries, samples/CVS/Repository, samples/CVS/Root, t/CVS/Entries, t/CVS/Repository, t/CVS/Root, t/input/CVS/Entries, t/input/CVS/Repository, t/input/CVS/Root
  • Duplicates in MANIFEST: t/FLAT-FA-PRE.t, t/FLAT-FA-RE.t, t/FLAT.t


Take a look at the META.yml Spec at (for version 1.4) or (for version 2), and change your META.yml accordingly.

Error: Expected a map structure from string or file. (requires) [Validation: 1.0]


Add 'use strict' (or its equivalents) to all modules, or convince us that your favorite module is well-known enough and people can easily see the modules are strictly written.

Error: FLAT


Add a META.json to the distribution. Your buildtool should be able to autogenerate it.


If you are using Build.PL define the {requires}{perl} = VERSION field. If you are using MakeMaker (Makefile.PL) you should upgrade ExtUtils::MakeMaker to 6.48 and use MIN_PERL_VERSION parameter. Perl::MinimumVersion can help you determine which version of Perl your module needs.


Define the license if you are using in Build.PL. If you are using MakeMaker (Makefile.PL) you should upgrade to ExtUtils::MakeMaker version 6.31.


Add 'use warnings' (or its equivalents) to all modules, or convince us that your favorite module is well-known enough and people can easily see the modules warn when something bad happens.

Error: FLAT, FLAT::Legacy::FA, FLAT::Legacy::FA::DFA, FLAT::Legacy::FA::NFA, FLAT::Legacy::FA::PFA, FLAT::Legacy::FA::PRE, FLAT::Legacy::FA::RE


This is not a critical issue. Currently mainly informative for the CPANTS authors. It might be removed later.


Add all modules contained in this distribution to the META.yml field 'provides'. Module::Build or Dist::Zilla::Plugin::MetaProvides do this automatically for you.


Add a 'repository' resource to the META.yml via 'meta_add' accessor (for Module::Build) or META_ADD parameter (for ExtUtils::MakeMaker).


Name Abstract Version View
FLAT::Legacy::FA metacpan
FLAT::Legacy::FA::DFA metacpan
FLAT::Legacy::FA::NFA metacpan
FLAT::Legacy::FA::PFA metacpan
FLAT::Legacy::FA::PRE metacpan
FLAT::Legacy::FA::RE metacpan

Other Files

Changes metacpan
MANIFEST metacpan
META.yml metacpan
Makefile.PL metacpan
README metacpan