Версия пакета: gem-rubyntlm-0.6.3-alt1.noarch

Шаги:
1) # apt-get install gem-rubyntlm
2) ruby -e "require 'rubyntlm'"
Ожидаемый результат: успешная загрузка
Реальный результат:
/usr/lib/ruby/rubygems/dependency.rb:301:in `to_specs': Could not find 'github_changelog_generator' (>= 1.14.3) among 210 total gem(s) (Gem::MissingSpecError)


В /usr/lib/ruby/gems/2.7.0/specifications/rubyntlm-0.6.3.gemspec указаны зависимости:
if s.respond_to? :add_runtime_dependency then
    s.add_runtime_dependency(%q<github_changelog_generator>.freeze, [">= 1.14.3"])
    s.add_development_dependency(%q<pry>.freeze, [">= 0"])
    s.add_development_dependency(%q<rake>.freeze, [">= 0"])
    s.add_development_dependency(%q<rspec>.freeze, [">= 2.11"])
    s.add_development_dependency(%q<simplecov>.freeze, [">= 0"])
  else
    s.add_dependency(%q<github_changelog_generator>.freeze, [">= 1.14.3"])
    s.add_dependency(%q<pry>.freeze, [">= 0"])
    s.add_dependency(%q<rake>.freeze, [">= 0"])
    s.add_dependency(%q<rspec>.freeze, [">= 2.11"])
    s.add_dependency(%q<simplecov>.freeze, [">= 0"])
  end