Вот такой выхлоп в терминале. ОС Winda10
Может ему парсер какой не нравится?
gem install twitter
Temporarily enhancing PATH for MSYS/MINGW...
Building native extensions. This could take a while...
ERROR: Error installing twitter:
ERROR: Failed to build gem native extension.
current directory: C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/http_parser.rb-0.6.0/ext/ruby_http_parser
C:/Ruby25-x64/bin/ruby.exe -r ./siteconf20180121-11440-1u76p6v.rb extconf.rb
creating Makefile
current directory: C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/http_parser.rb-0.6.0/ext/ruby_http_parser
make "DESTDIR=" clean
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current directory: C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/http_parser.rb-0.6.0/ext/ruby_http_parser
make "DESTDIR="
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make failed, exit code 1
Gem files will remain installed in C:/Ruby25-x64/lib/ruby/gems/2.5.0/gems/http_parser.rb-0.6.0 for inspection.
Results logged to C:/Ruby25-x64/lib/ruby/gems/2.5.0/extensions/x64-mingw32/2.5.0/http_parser.rb-0.6.0/gem_make.out