cannot load such file -- refinery/core/nil_user

[ttmthanh]

I'm trying to install gem 'refinerycms-search' for the project. But when running 'rails generate refinery: search' the error is as shown. Please tell me the reason.

rails generate refinery:search
/home/thanh/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:274:in require': cannot load such file -- refinery/core/nil_user (LoadError) from /home/thanh/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:274:in block in require'
from /home/thanh/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:240:in load_dependency' from /home/thanh/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:274:in require'
from /home/thanh/monnhatban/config/initializers/refinery/core/authorisation_adapter.rb:1:in <top (required)>' from /home/thanh/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:268:in load'
from /home/thanh/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:268:in block in load' from /home/thanh/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:240:in load_dependency'
from /home/thanh/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:268:in load' from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/engine.rb:652:in block in load_config_initializer'
from /home/thanh/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.0/lib/active_support/notifications.rb:166:in instrument' from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/engine.rb:651:in load_config_initializer'
from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/engine.rb:616:in block (2 levels) in <class:Engine>' from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/engine.rb:615:in each'
from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/engine.rb:615:in block in <class:Engine>' from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/initializable.rb:30:in instance_exec'
from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/initializable.rb:30:in run' from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/initializable.rb:55:in block in run_initializers'
from /home/thanh/.rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/tsort.rb:228:in block in tsort_each' from /home/thanh/.rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/tsort.rb:350:in block (2 levels) in each_strongly_connected_component'
from /home/thanh/.rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/tsort.rb:422:in block (2 levels) in each_strongly_connected_component_from' from /home/thanh/.rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/tsort.rb:431:in each_strongly_connected_component_from'
from /home/thanh/.rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/tsort.rb:421:in block in each_strongly_connected_component_from' from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/initializable.rb:44:in each'
from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/initializable.rb:44:in tsort_each_child' from /home/thanh/.rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/tsort.rb:415:in call'
from /home/thanh/.rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/tsort.rb:415:in each_strongly_connected_component_from' from /home/thanh/.rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/tsort.rb:349:in block in each_strongly_connected_component'
from /home/thanh/.rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/tsort.rb:347:in each' from /home/thanh/.rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/tsort.rb:347:in call'
from /home/thanh/.rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/tsort.rb:347:in each_strongly_connected_component' from /home/thanh/.rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/tsort.rb:226:in tsort_each'
from /home/thanh/.rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/tsort.rb:205:in tsort_each' from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/initializable.rb:54:in run_initializers'
from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/application.rb:352:in initialize!' from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/railtie.rb:194:in public_send'
from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/railtie.rb:194:in method_missing' from /home/thanh/monnhatban/config/environment.rb:5:in <top (required)>'
from /home/thanh/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:274:in require' from /home/thanh/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:274:in block in require'
from /home/thanh/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:240:in load_dependency' from /home/thanh/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:274:in require'
from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/application.rb:328:in require_environment!' from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:142:in require_application_and_environment!'
from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:128:in generate_or_destroy' from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:50:in generate'
from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:39:in run_command!' from /home/thanh/.rvm/gems/ruby-2.3.4/gems/railties-4.2.0/lib/rails/commands.rb:17:in <top (required)>'
from script/rails:6:in require' from script/rails:6:in

'

[ttmthanh]

Here is my gemfile

source 'https://rubygems.org'
ruby '2.3.4'
gem 'rails', '4.2.0'
gem 'slim'
gem 'jquery-rails'
gem 'turbolinks'
gem 'metamagic'
gem 'unicorn'
gem 'rmagick'
gem 'whenever'
gem 'lazyload-rails'
gem 'yaml_db'
gem 'jpmobile'
gem 'jbuilder'
gem 'sdoc', '~> 0.4.1', group: :doc
gem 'thin'
gem 'refinerycms', github: 'refinery/refinerycms', branch: 'master'
gem 'refinerycms-acts-as-indexed', '~> 3.0.0'
gem 'refinerycms-inquiries', github: 'refinery/refinerycms-inquiries', branch: 'master'
gem 'refinerycms-search', github: 'refinery/refinerycms-search', branch: '3-0-stable'
gem 'refinerycms-page-images', github: 'refinery/refinerycms-page-images', branch: "master"
gem 'refinerycms-i18n', github: 'refinery/refinerycms-i18n', branch: 'master'
gem 'refinerycms-wymeditor', ['~> 1.0', '>= 1.0.6']
gem 'refinerycms-authentication-devise', '~> 1.0.4'
gem 'zilch-authorisation', '~> 0.0.1'
gem 'therubyracer'
gem "font-awesome-rails"
gem "exception_notification"
group :development, :test do
gem 'quiet_assets'
gem 'sqlite3'
gem 'byebug'
gem 'web-console'
gem 'spring'
end
group :development do
gem 'pry-rails'
end
gem 'sass-rails'
gem 'coffee-rails'
gem 'uglifier'
gem 'bootstrap-sass'
group :production do
gem 'fog'
gem 'rails_12factor'
gem 'pg'
gem "dragonfly-s3_data_store", "1.3.0"
end
gem 'debugger'