hi
when i enter rails console this errors displays ,could you help me please ?
/home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:252:in `require’: cannot load such file – readline (LoadError)
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:252:in `block in require'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:237:in `load_dependency'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:252:in `require'
from /home/farnaz/.rbenv/versions/2.1.5/lib/ruby/2.1.0/irb/completion.rb:9:in `<top (required)>'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:252:in `require'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:252:in `block in require'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:237:in `load_dependency'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:252:in `require'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/railties-4.2.0.beta4/lib/rails/commands/console.rb:3:in `<top (required)>'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:252:in `require'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:252:in `block in require'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:237:in `load_dependency'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:252:in `require'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/railties-4.2.0.beta4/lib/rails/commands/commands_tasks.rb:123:in `require_command!'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/railties-4.2.0.beta4/lib/rails/commands/commands_tasks.rb:58:in `console'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/railties-4.2.0.beta4/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/railties-4.2.0.beta4/lib/rails/commands.rb:17:in `<top (required)>'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:252:in `require'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:252:in `block in require'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:237:in `load_dependency'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:252:in `require'
from /home/farnaz/workspace/sample_app/bin/rails:8:in `<top (required)>'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:246:in `load'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:246:in `block in load'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:237:in `load_dependency'
from /home/farnaz/workspace/sample_app/path/ruby/2.1.0/gems/activesupport-4.2.0.beta4/lib/active_support/dependencies.rb:246:in `load'
from /home/farnaz/.rbenv/versions/2.1.5/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /home/farnaz/.rbenv/versions/2.1.5/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from -e:1:in `<main>'
and this is my gem file :
gem ‘rails’, ‘4.2.0.beta4’
gem ‘bcrypt’, ‘3.1.7’
gem ‘faker’, ‘1.4.2’
gem ‘rake’
gem ‘carrierwave’, ‘0.10.0’
gem ‘mini_magick’, ‘3.8.0’
gem ‘fog’, ‘1.23.0’
gem ‘will_paginate’, ‘3.0.7’
gem ‘bootstrap-will_paginate’, ‘0.0.10’
gem ‘bootstrap-sass’, ‘3.2.0.0’
gem ‘sass-rails’, ‘5.0.0.beta1’
gem ‘uglifier’, ‘2.5.3’
gem ‘coffee-rails’, ‘4.0.1’
gem ‘jquery-rails’, ‘4.0.0.beta2’
gem ‘turbolinks’, ‘2.3.0’
gem ‘jbuilder’, ‘2.2.3’
gem ‘arel’, ‘6.0.0.beta2’
gem ‘sdoc’, ‘0.4.0’, group: :doc
group :development, :test do
gem ‘sqlite3’, ‘1.3.9’
gem ‘byebug’, ‘3.4.0’
gem ‘web-console’, ‘2.0.0.beta3’
gem ‘spring’, ‘1.1.3’
end
group :test do
gem ‘minitest-reporters’, ‘1.0.5’
gem ‘mini_backtrace’, ‘0.1.3’
gem ‘guard-minitest’, ‘2.3.1’
end
group :production do
gem ‘pg’, ‘0.17.1’
gem ‘rails_12factor’, ‘0.0.2’
gem ‘unicorn’, ‘4.8.3’
end