Cannot init or load guard-livereload on Ruby 2.4.1/Windows

[soundasleep]

It seems that guard-livereload isn't supported on the latest Ruby 2.4+ on Windows.

Putting this into my Gemfile, and running bundle works fine:

group :development do
  gem 'guard', require: false
  gem 'guard-livereload', '~> 2.5'
  gem 'guard-bundler'
end

But trying to initialise the Guardfile fails (note running just bundle exec guard init works fine):

C:\path>bundle exec guard init livereload
Unable to load the EventMachine C extension; To use the pure-ruby reactor, require 'em/pure_ruby'
18:47:23 - INFO - Run 'gem install win32console' to use color on Windows
18:47:23 - ERROR - Could not load 'guard/livereload' or '~/.guard/templates/livereload' or find class Guard::Livereload

C:\path>ruby -v
ruby 2.4.1p111 (2017-03-22 revision 58053) [x64-mingw32]

C:\path>rails -v
Rails 5.1.2

If I use a different Guardfile that's already initialised, and run bundle exec guard, everything explodes:

C:\path>bundle exec  guard
Unable to load the EventMachine C extension; To use the pure-ruby reactor, require 'em/pure_ruby'
18:49:06 - INFO - Run 'gem install win32console' to use color on Windows
18:49:06 - ERROR - Could not load 'guard/livereload' or find class Guard::Livereload
18:49:06 - ERROR - Error is: cannot load such file -- 2.4/rubyeventmachine
18:49:06 - ERROR - C:/Ruby/lib/ruby/gems/2.4.0/gems/eventmachine-1.2.3-x64-mingw32/lib/rubyeventmachine.rb:2:in `require'
> [#] C:/Ruby/lib/ruby/gems/2.4.0/gems/eventmachine-1.2.3-x64-mingw32/lib/rubyeventmachine.rb:2:in `<top (required)>'
> [#] C:/Ruby/lib/ruby/gems/2.4.0/gems/eventmachine-1.2.3-x64-mingw32/lib/eventmachine.rb:8:in `require'
> ...
> [#] C:/Ruby/lib/ruby/gems/2.4.0/gems/guard-2.14.1/bin/_guard-core:11:in `<main>'
18:49:06 - ERROR - Invalid Guardfile, original error is:
> [#]
> [#] Could not load class: "Livereload",
> [#] backtrace:
> [#]   (dsl)> C

[soundasleep]

It looks like it's something to do with my eventmachine/system setup. Adding require 'em/pure_ruby' into the Gemfile solves the issue. (Though there's probably a better place for it to go.)

[soundasleep]

An even better workaround is simply to use an older version of eventmachine.

gem 'eventmachine', '1.0.9.1'

[gbadesimple]

This also happened to me on my Windows 10 machine. What i did was that, i copy and past require 'em/pure_ruby' into the Guardfile created and again
Run guard init livereload in your terminal.

The response should look something like:

Warning: you have a Gemfile, but you're not using bundler or RUBYGEMS_GEMDEPS
09:19:35 - INFO - livereload guard added to Guardfile, feel free to edit it

[rahalrazika]

This also happened to me on my Windows 10 machine. What i did was that, i copy and past require 'em/pure_ruby' into the Guardfile created and again
Run guard init livereload in your terminal.

The response should look something like:

Warning: you have a Gemfile, but you're not using bundler or RUBYGEMS_GEMDEPS
09:19:35 - INFO - livereload guard added to Guardfile, feel free to edit it
thank you so much