Eventmachine on windows

[Waidmann]

Describe the bug
On windows 10, when zou follow the installation instructions givn in the readme, zou run into the following error:

Unable to load the EventMachine C extension; To use the pure-ruby reactor, require 'em/pure_ruby'
Traceback (most recent call last):
        9: from C:/Ruby26-x64/bin/thin:23:in `<main>'
        8: from C:/Ruby26-x64/bin/thin:23:in `load'
        7: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/thin-1.7.2/bin/thin:5:in `<top (required)>'
        6: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/thin-1.7.2/bin/thin:5:in `require'
        5: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/thin-1.7.2/lib/thin.rb:7:in `<top (required)>'
        4: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/thin-1.7.2/lib/thin.rb:7:in `require'
        3: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/eventmachine-1.2.7-x64-mingw32/lib/eventmachine.rb:8:in `<top (required)>'
        2: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/eventmachine-1.2.7-x64-mingw32/lib/eventmachine.rb:8:in `require'
        1: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/eventmachine-1.2.7-x64-mingw32/lib/rubyeventmachine.rb:2:in `<top (required)>'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/eventmachine-1.2.7-x64-mingw32/lib/rubyeventmachine.rb:2:in `require': cannot load such file -- 2.6/rubyeventmachine (LoadError)

You can fix this by editing the eventmachine-1.2.7-x64-mingw32 ruby to require 'em/pure_ruby', however when you do this, another error will pop up when trying to run 'smashing start':

Thin web server (v1.7.2 codename Bachmanity)
Maximum connections set to 1024
Listening on 0.0.0.0:3030, CTRL+C to stop
3Traceback (most recent call last):
        20: from C:/Ruby26-x64/bin/thin:23:in `<main>'
        19: from C:/Ruby26-x64/bin/thin:23:in `load'
        18: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/thin-1.7.2/bin/thin:6:in `<top (required)>'
        17: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/thin-1.7.2/lib/thin/runner.rb:159:in `run!'
        16: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/thin-1.7.2/lib/thin/runner.rb:203:in `run_command'
        15: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/thin-1.7.2/lib/thin/controllers/controller.rb:87:in `start'
        14: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/thin-1.7.2/lib/thin/server.rb:162:in `start'
        13: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/thin-1.7.2/lib/thin/backends/base.rb:73:in `start'
        12: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/eventmachine-1.2.7-x64-mingw32/lib/eventmachine.rb:197:in `run'
        11: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/eventmachine-1.2.7-x64-mingw32/lib/em/pure_ruby.rb:144:in `run_machine'
        10: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/eventmachine-1.2.7-x64-mingw32/lib/em/pure_ruby.rb:547:in `run'
         9: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/eventmachine-1.2.7-x64-mingw32/lib/em/pure_ruby.rb:547:in `loop'
         8: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/eventmachine-1.2.7-x64-mingw32/lib/em/pure_ruby.rb:551:in `block in run'
         7: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/eventmachine-1.2.7-x64-mingw32/lib/em/pure_ruby.rb:568:in `run_timers'
         6: from C:/Ruby26-x64/lib/ruby/2.6.0/set.rb:777:in `each'
         5: from C:/Ruby26-x64/lib/ruby/2.6.0/set.rb:777:in `each'
         4: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/eventmachine-1.2.7-x64-mingw32/lib/em/pure_ruby.rb:571:in `block in run_timers'
         3: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/eventmachine-1.2.7-x64-mingw32/lib/eventmachine.rb:1547:in `event_callback'
         2: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/thin-1.7.2/lib/thin/backends/base.rb:63:in `block in start'
         1: from C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/thin-1.7.2/lib/thin/backends/tcp_server.rb:19:in `connect'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/thin-1.7.2/lib/thin/backends/tcp_server.rb:19:in `unpack_sockaddr_in': no implicit conversion of nil into String (TypeError)

To Reproduce
On windows, download and install rubywindows installer
Follow the instructions given in the readme

[rompic]

maybe try
oneclick/rubyinstaller2#96
instead

gem uninstall eventmachine
gem install eventmachine --platform ruby

[painbank]

maybe try
oneclick/rubyinstaller2#96
instead

gem uninstall eventmachine
gem install eventmachine --platform ruby

I tried this and it didn't work for me

[rompic]

Please join the current discussion in the gitter channel.
Where I recently wrote;
so... i kinda got it working with ruby 2.5 and it's a mess :|
it definitely requires installing nodejs (see #172)
and it seems I only managed to run it with native eventmachine (#131) and by copying the native eventmachine gem and renaming it to eventmachine-1.2.7-x64-mingw32 because thin somehow seems to depend on it

[kinow]

Updated installation instructions with link to issues, and a workaround that requires only editing files in the dashboard folder: https://github.com/Smashing/smashing/wiki/Installation#problems-starting-smashing-due-to-thineventmachine