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.

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: Sah::Schema::cryptocurrency, Sah::Schema::cryptocurrency::code, Sah::Schema::cryptocurrency::code_or_name, Sah::Schema::cryptocurrency::safename, Sah::Schema::cryptoexchange, Sah::Schema::cryptoexchange::code, Sah::Schema::cryptoexchange::currency_pair, Sah::Schema::cryptoexchange::name, Sah::Schema::cryptoexchange::safename, Sah::Schema::fiat_currency, Sah::Schema::fiat_or_cryptocurrency, Sah::SchemaR::cryptocurrency, Sah::SchemaR::cryptocurrency::code, Sah::SchemaR::cryptocurrency::code_or_name, Sah::SchemaR::cryptocurrency::safename, Sah::SchemaR::cryptoexchange, Sah::SchemaR::cryptoexchange::code, Sah::SchemaR::cryptoexchange::currency_pair, Sah::SchemaR::cryptoexchange::name, Sah::SchemaR::cryptoexchange::safename, Sah::SchemaR::fiat_currency, Sah::SchemaR::fiat_or_cryptocurrency, Sah::Schemas::CryptoCurrency

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.