Add a section called "LICENSE" to the documentation, or add a file named LICENSE to the distribution.
Add =head1 LICENSE and the text of the license to the main module in your code.
Add a META.yml to the distribution. Your buildtool should be able to autogenerate it.
Upgrade the bundled version of Module::Install to at least 0.89, but preferably to the most current release. Alternatively, you can switch to another build system / installer that does not suffer from this problem. (ExtUtils::MakeMaker, Module::Build both of which have their own set of problems.)
Remove the POD errors. You can check for POD errors automatically by including Test::Pod to your test suite.
Error: XML-SemanticCompare-0.92/lib/XML/SemanticCompare/SAX.pm -- Around line 207: =cut found outside a pod block. Skipping to next block. XML-SemanticCompare-0.92/lib/XML/SemanticCompare.pm -- Around line 468: =cut found outside a pod block. Skipping to next block.
Fix the version(s).
List all used modules in META.yml requires
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.
Split the distribution, or fix the version numbers to make them consistent (use the highest version number to avoid version downgrade).
Add =head1 LICENSE and/or the proper text of the well-known license to the main module in your code.
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.
Add 'use warnings' (or its equivalents) to all modules (this will require perl > 5.6), or convince us that your favorite module is well-known enough and people can easily see the modules warn when something bad happens.
Error: XML::SemanticCompare, XML::SemanticCompare::SAX
This is not a critical issue. Currently mainly informative for the CPANTS authors. It might be removed later.