Can't install it.. - Rails 4.2

[dyatlov]

rails g react:install

/home/vagrant/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/react-rails-1.1.0/lib/react/rails/railtie.rb:42:in `block in <class:Railtie>': undefined method `version' for nil:NilClass (NoMethodError)
        from /home/vagrant/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.3/lib/rails/initializable.rb:30:in `instance_exec'

[rmosolgo]

Could you post your gemfile.lock? I think it's a conflict with a Sprockets/sprockets-rails version

[dyatlov]

@rmosolgo sure: https://gist.github.com/dyatlov/07f9f68a02f6737aeb73

[vipulnsward]

@dyatlov this is fixed on master. Can you give it a try?

[dyatlov]

@vipulnsward thanks, trying

[dyatlov]

@vipulnsward unfortunately,

vagrant@vagrant:/vagrant$ rails g react:install
/home/vagrant/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/bundler/gems/react-rails-d433c0ddb103/lib/react/rails/engine.rb:5:in `block in class:Engine': uninitialized constant React::Rails::Engine::Sprockets (NameError)

[ncri]

Same here, but a different error from one of my initializers. Seems a class loading issue, as that initializer works fine when loading the app normally. I will install manually...

[ncri]

Btw.: To avoid name clashes I would call the folder rather react_components than components.

[ncri]

One more thing: :) The generator assumes the manifest is called application.js. Not true for our projects. It is either application.js.coffee or application.js.coffee.erb here. Would be cool if the generator could also recognize those.

[ncri]

Ah, turns out the generator error here is not limited to the generator.
In fact I cannot start up the app anymore after installing the gem:

/config/initializers/will_paginate.rb:3:in `<top (required)>': uninitialized constant WillPaginate::ActionView (NameError)
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/engine.rb:652:in `block in load_config_initializer'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/activesupport-4.2.2/lib/active_support/notifications.rb:166:in `instrument'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/engine.rb:651:in `load_config_initializer'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/engine.rb:616:in `block (2 levels) in <class:Engine>'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/engine.rb:615:in `each'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/engine.rb:615:in `block in <class:Engine>'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/initializable.rb:30:in `instance_exec'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/initializable.rb:30:in `run'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/initializable.rb:55:in `block in run_initializers'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:226:in `block in tsort_each'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:420:in `block (2 levels) in each_strongly_connected_component_from'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:420:in `block (2 levels) in each_strongly_connected_component_from'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:429:in `each_strongly_connected_component_from'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:419:in `block in each_strongly_connected_component_from'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/initializable.rb:44:in `each'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/initializable.rb:44:in `tsort_each_child'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:413:in `call'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:413:in `each_strongly_connected_component_from'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:419:in `block in each_strongly_connected_component_from'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/initializable.rb:44:in `each'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/initializable.rb:44:in `tsort_each_child'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:413:in `call'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:413:in `each_strongly_connected_component_from'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:347:in `block in each_strongly_connected_component'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:345:in `each'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:345:in `call'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:345:in `each_strongly_connected_component'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:224:in `tsort_each'
    from /Users/nico/.rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/tsort.rb:203:in `tsort_each'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/initializable.rb:54:in `run_initializers'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/application.rb:352:in `initialize!'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/railtie.rb:194:in `public_send'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/railtie.rb:194:in `method_missing'
    from /Users/nico/Rails/new_yousty/yousty/config/environment.rb:7:in `<top (required)>'
    from /Users/nico/Rails/new_yousty/yousty/config.ru:3:in `block in <main>'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/rack-1.6.2/lib/rack/builder.rb:55:in `instance_eval'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/rack-1.6.2/lib/rack/builder.rb:55:in `initialize'
    from /Users/nico/Rails/new_yousty/yousty/config.ru:in `new'
    from /Users/nico/Rails/new_yousty/yousty/config.ru:in `<main>'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/rack-1.6.2/lib/rack/builder.rb:49:in `eval'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/rack-1.6.2/lib/rack/builder.rb:49:in `new_from_string'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/rack-1.6.2/lib/rack/builder.rb:40:in `parse_file'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/rack-1.6.2/lib/rack/server.rb:299:in `build_app_and_options_from_config'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/rack-1.6.2/lib/rack/server.rb:208:in `app'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/commands/server.rb:61:in `app'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/rack-1.6.2/lib/rack/server.rb:336:in `wrapped_app'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/commands/server.rb:139:in `log_to_stdout'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/commands/server.rb:78:in `start'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:80:in `block in server'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:75:in `tap'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:75:in `server'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
    from /Users/nico/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/commands.rb:17:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

[ncri]

Fixed it, had to include the will_paginate gem before the react-rails gem in the gemfile.

[rmosolgo]

Wow, how strange! I never heard of an order dependency in a Rails Gemfile before!

[ncri]

Yep, odd. But I did have it before. :) I think it probably has to do with what react-rails does when it is required. It seems to load my initializers - not every gem does that. And if the will_paginate gem is not loaded first, the initializer breaks.

[npverni]

Seeing the same thing with will_paginate. Confirmed that changing the order fixes it.

[npverni]

This looks like the commit that changed it #347.

Weird that we're both running into issues with will_paginate, so it could also be a will_paginate thing.

I've also been able to fix it by requiring in the will_paginate initializer:

require 'will_paginate/view_helpers'
require 'will_paginate/view_helpers/action_view'

[ebenoist]

I can confirm a similar load order issue with the mobile-fu gem.

[flowerett]

I can confirm similar issue with rolify gem
my gemfile:

rails (4.2.4)
react-rails (1.4.2)
rolify (4.0.0)

regarding to RolifyCommunity/rolify#156 there's something wrong in the react-rails initializer

[rmosolgo]

Sorry, it's been quite a while since I heard about an instance of this issue. If someone finds it again, please let me know and I'll see if any changes to our railtie can fix it!