Could you please update your dependency and make a new x64-mingw release, please? I keep getting the error :
Unable to load the EventMachine C extension; To use the pure-ruby reactor, require 'em/pure_ruby'
And even though I request em/pure_ruby on my .rb file, I still get:
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/eventmachine-1.2.5-x64-mingw32/lib/em/pure_ruby.rb:554:in `close': Bad file descriptor (Errno::EBADF)