Konrad Krawczuk

This is great tut- based on it I installed rails 5 and ruby 2.3.1. created new test app and after rails -s I have something like this: => Booting Puma
=> Rails 5.0.0 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
Exiting
/root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rb-inotify-0.9.7/lib/rb-inotify/watcher.rb:74:in `initialize': Invalid argument - Failed to watch "/root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0/lib/active_support/locale": the given event mask contains no legal events; or fd is not an inotify file descriptor. (Errno::EINVAL)
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rb-inotify-0.9.7/lib/rb-inotify/notifier.rb:190:in `new'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rb-inotify-0.9.7/lib/rb-inotify/notifier.rb:190:in `watch'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rb-inotify-0.9.7/lib/rb-inotify/notifier.rb:204:in `watch'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/listen-3.0.8/lib/listen/adapter/linux.rb:32:in `_configure'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/listen-3.0.8/lib/listen/adapter/base.rb:45:in `block in configure'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/listen-3.0.8/lib/listen/adapter/base.rb:40:in `each'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/listen-3.0.8/lib/listen/adapter/base.rb:40:in `configure'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/listen-3.0.8/lib/listen/adapter/base.rb:63:in `start'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/listen-3.0.8/lib/listen/backend.rb:28:in `start'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/listen-3.0.8/lib/listen/listener.rb:67:in `block in <class:listener>'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/listen-3.0.8/lib/listen/fsm.rb:120:in `instance_eval'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/listen-3.0.8/lib/listen/fsm.rb:120:in `call'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/listen-3.0.8/lib/listen/fsm.rb:91:in `transition_with_callbacks!'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/listen-3.0.8/lib/listen/fsm.rb:57:in `transition'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/listen-3.0.8/lib/listen/listener.rb:90:in `start'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0/lib/active_support/evented_file_update_checker.rb:90:in `boot!'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0/lib/active_support/evented_file_update_checker.rb:61:in `initialize'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0/lib/active_support/i18n_railtie.rb:59:in `new'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0/lib/active_support/i18n_railtie.rb:59:in `initialize_i18n'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0/lib/active_support/i18n_railtie.rb:15:in `block in <class:railtie>'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0/lib/active_support/lazy_load_hooks.rb:45:in `block in run_load_hooks'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0/lib/active_support/lazy_load_hooks.rb:44:in `each'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0/lib/active_support/lazy_load_hooks.rb:44:in `run_load_hooks'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0/lib/rails/application/finisher.rb:65:in `block in <module:finisher>'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0/lib/rails/initializable.rb:30:in `instance_exec'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0/lib/rails/initializable.rb:30:in `run'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0/lib/rails/initializable.rb:55:in `block in run_initializers'
from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:228:in `block in tsort_each'
from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:431:in `each_strongly_connected_component_from'
from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:349:in `block in each_strongly_connected_component'
from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:347:in `each'
from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:347:in `call'
from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:347:in `each_strongly_connected_component'
from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:226:in `tsort_each'
from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:205:in `tsort_each'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0/lib/rails/initializable.rb:54:in `run_initializers'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0/lib/rails/application.rb:352:in `initialize!'
from /root/myapp/config/environment.rb:5:in `<top (required)="">'
from /root/myapp/config.ru:3:in `require_relative'
from /root/myapp/config.ru:3:in `block in <main>'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-2.0.1/lib/rack/builder.rb:55:in `instance_eval'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-2.0.1/lib/rack/builder.rb:55:in `initialize'
from /root/myapp/config.ru:in `new'
from /root/myapp/config.ru:in `<main>'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-2.0.1/lib/rack/builder.rb:49:in `eval'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-2.0.1/lib/rack/builder.rb:49:in `new_from_string'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-2.0.1/lib/rack/builder.rb:40:in `parse_file'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-2.0.1/lib/rack/server.rb:318:in `build_app_and_options_from_config'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-2.0.1/lib/rack/server.rb:218:in `app'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0/lib/rails/commands/server.rb:59:in `app'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-2.0.1/lib/rack/server.rb:353:in `wrapped_app'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0/lib/rails/commands/server.rb:124:in `log_to_stdout'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0/lib/rails/commands/server.rb:77:in `start'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0/lib/rails/commands/commands_tasks.rb:90:in `block in server'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0/lib/rails/commands/commands_tasks.rb:85:in `tap'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0/lib/rails/commands/commands_tasks.rb:85:in `server'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0/lib/rails/commands/commands_tasks.rb:49:in `run_command!'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0/lib/rails/commands.rb:18:in `<top (required)="">'
from /root/myapp/bin/rails:9:in `require'
from /root/myapp/bin/rails:9:in `<top (required)="">'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/client/rails.rb:28:in `load'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/client/rails.rb:28:in `call'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/client/command.rb:7:in `call'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/client.rb:30:in `run'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/bin/spring:49:in `<top (required)="">'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/binstub.rb:11:in `load'
from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/binstub.rb:11:in `<top (required)="">'
from /root/.rbenv/versions/2.3.1/lib/ruby/site_ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /root/.rbenv/versions/2.3.1/lib/ruby/site_ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /root/myapp/bin/spring:13:in `<top (required)="">'
from bin/rails:3:in `load'
from bin/rails:3:in `<main>'
Any ideas what should I do ?