Under maintenance.

Most probably CPANTS databases are being regenerated from scratch due to major changes in Kwalitee metrics or updates of relevant modules/perl. Usually this maintenance takes about a day or two, and some of the information may be old or missing tentatively. Sorry for the inconvenience.

Kwalitee Issues


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


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 (17) does not match dist (51):
  • Missing in MANIFEST: t/data/genbank_file1.gb, t/data/gene_models_manuscript.gff3, t/images/alt_feature.png, t/images/alt_feature.svg, t/images/basecase.png, t/images/basecase.svg, t/images/feature_offset.png, t/images/feature_offset.svg, t/images/flip_minus1.png, t/images/flip_minus1.svg, t/images/flip_minus2.png, t/images/flip_minus2.svg, t/images/genbank.png, t/images/ignore_utr.png, t/images/ignore_utr.svg, t/images/intron_size.png, t/images/intron_size2.png, t/images/manuscript_figure1.html, t/images/manuscript_figure1.png, t/images/manuscript_figure1.svg, t/images/manuscript_figure2.html, t/images/manuscript_figure2.png, t/images/manuscript_figure2.svg, t/images/manuscript_figure3.html, t/images/manuscript_figure3.png, t/images/manuscript_figure3.svg, t/images/ruler.png, t/images/ruler.svg, t/images/seperator.png, t/images/seperator.svg, t/images/skip_transcript.png, t/images/skip_transcript.svg, t/images/span.png, t/images/span.svg


If you use Mac OS X >= 10.6, use gnu tar (/usr/bin/gnutar) to avoid PAX headers. It's also important to rename (shorten) long file names (>= 100 characters) in the distribution.

Error: pax_global_header,pax_global_header


Fix the version(s).


List all used modules in META.yml requires


  • Bio::Graphics::Feature
  • Bio::Graphics::Glyph::decorated_transcript
  • Bio::Graphics::Panel
  • Bio::Root::Root
  • GD::SVG


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


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.


List all modules used in the test suite in META.yml build_requires


  • Test::Exception


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


Name Abstract Version View
Bio::Draw::FeatureStack BioPerl module to generate GD images of stacked gene models 0.01 metacpan

Other Files

Changes metacpan
MANIFEST metacpan
Makefile.PL metacpan
README metacpan