このエラーで約 3 日間立ち往生しており、修正方法がわかりません。どんな助けでも大歓迎です。
ところで、私は Windows マシンを使用しており、Ruby v.1.9.3p392 と Rails v. 3.2.13 を使用しています。
エラーが発生する前に発行したコマンドは次のとおりです。
'rails generate scaffold User name:string email:string'
これは次のエラーです。
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/a
pplication/configuration.rb:140:in `const_get': uninitialized constant ActionDis
patch::Session::EncryptedCookieStore (NameError)
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/application/configuration.rb:140:in `session_store'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/application.rb:273:in `block in default_middleware_stack'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/application.rb:237:in `tap'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/application.rb:237:in `default_middleware_stack'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/engine.rb:469:in `app'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/application/finisher.rb:31:in `block in <module:Finisher>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/initializable.rb:30:in `instance_exec'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/initializable.rb:30:in `run'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/initializable.rb:55:in `block in run_initializers'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/initializable.rb:54:in `each'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/initializable.rb:54:in `run_initializers'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/application.rb:136:in `initialize!'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/railtie/configurable.rb:30:in `method_missing'
from C:/ruby/rails_projects/demo_app/config/environment.rb:5:in `<top (r
equired)>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/application.rb:103:in `require'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/application.rb:103:in `require_environment!'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/commands.rb:25:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
これは私のconfiguration.rbファイルです（「暗号化」については何も表示されません）
require 'active_support/core_ext/string/encoding'
require 'active_support/core_ext/kernel/reporting'
require 'active_support/file_update_checker'
require 'rails/engine/configuration'
module Rails
class Application
class Configuration < ::Rails::Engine::Configuration
attr_accessor :allow_concurrency, :asset_host, :asset_path, :assets,
:cache_classes, :cache_store, :consider_all_requests_local,
:dependency_loading, :exceptions_app, :file_watcher, :filter_parameters,
:force_ssl, :helpers_paths, :logger, :log_tags, :preload_frameworks,
:railties_order, :relative_url_root, :reload_plugins, :secret_token,
:serve_static_assets, :ssl_options, :static_cache_control, :session_options,
:time_zone, :reload_classes_only_on_change, :whiny_nils
attr_writer :log_level
attr_reader :encoding
def initialize(*)
super
self.encoding = "utf-8"
@allow_concurrency = false
@consider_all_requests_local = false
@filter_parameters = []
@helpers_paths = []
@dependency_loading = true
@serve_static_assets = true
@static_cache_control = nil
@force_ssl = false
@ssl_options = {}
@session_store = :cookie_store
@session_options = {}
@time_zone = "UTC"
@log_level = nil
@middleware = app_middleware
@generators = app_generators
@cache_store = [ :file_store, "#{root}/tmp/cache/" ]
@railties_order = [:all]
@relative_url_root = ENV["RAILS_RELATIVE_URL_ROOT"]
@reload_classes_only_on_change = true
@file_watcher = ActiveSupport::FileUpdateChecker
@exceptions_app = nil
@assets = ActiveSupport::OrderedOptions.new
@assets.enabled = false
@assets.paths = []
@assets.precompile = [ Proc.new{ |path| !File.extname(path).in?(['.js', '.css']) },
/(?:\/|\\|\A)application\.(css|js)$/ ]
@assets.prefix = "/assets"
@assets.version = ''
@assets.debug = false
@assets.compile = true
@assets.digest = false
@assets.manifest = nil
@assets.cache_store = [ :file_store, "#{root}/tmp/cache/assets/" ]
@assets.js_compressor = nil
@assets.css_compressor = nil
@assets.initialize_on_precompile = true
@assets.logger = nil
end
def compiled_asset_path
"/"
end
def encoding=(value)
@encoding = value
if "ruby".encoding_aware?
silence_warnings do
Encoding.default_external = value
Encoding.default_internal = value
end
else
$KCODE = value
if $KCODE == "NONE"
raise "The value you specified for config.encoding is " \
"invalid. The possible values are UTF8, SJIS, or EUC"
end
end
end
def paths
@paths ||= begin
paths = super
paths.add "config/database", :with => "config/database.yml"
paths.add "config/environment", :with => "config/environment.rb"
paths.add "lib/templates"
paths.add "log", :with => "log/#{Rails.env}.log"
paths.add "public"
paths.add "public/javascripts"
paths.add "public/stylesheets"
paths.add "tmp"
paths
end
end
# Enable threaded mode. Allows concurrent requests to controller actions and
# multiple database connections. Also disables automatic dependency loading
# after boot, and disables reloading code on every request, as these are
# fundamentally incompatible with thread safety.
def threadsafe!
self.preload_frameworks = true
self.cache_classes = true
self.dependency_loading = false
self.allow_concurrency = true
self
end
# Loads and returns the contents of the #database_configuration_file. The
# contents of the file are processed via ERB before being sent through
# YAML::load.
def database_configuration
require 'erb'
YAML::load(ERB.new(IO.read(paths["config/database"].first)).result)
end
def log_level
@log_level ||= Rails.env.production? ? :info : :debug
end
def colorize_logging
@colorize_logging
end
def colorize_logging=(val)
@colorize_logging = val
ActiveSupport::LogSubscriber.colorize_logging = val
self.generators.colorize_logging = val
end
def session_store(*args)
if args.empty?
case @session_store
when :disabled
nil
when :active_record_store
ActiveRecord::SessionStore
when Symbol
ActionDispatch::Session.const_get(@session_store.to_s.camelize)
else
@session_store
end
else
@session_store = args.shift
@session_options = args.shift || {}
end
end
end
end
end
これが私のGemfileです：
source 'https://rubygems.org'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '3.2.13'
group :development do
gem 'sqlite3', '1.3.7'
end
# Gems used only for assets and not required
# in production environments by default.
group :assets do
gem 'sass-rails', '~> 3.2.5'
gem 'coffee-rails', '~> 3.2.2'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby
gem 'uglifier', '>= 1.2.3'
end
gem 'jquery-rails', '2.0.2'
group :production do
gem 'pg', '0.12.2'
end
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
#gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
#gem 'jbuilder', '~> 1.0.1'
# To use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'
# Use unicorn as the app server
# gem 'unicorn'
# Deploy with Capistrano
# gem 'capistrano', group: :development
# To use debugger
# gem 'debugger'
わかりましたので、session_store.rb ファイルから「Encrypted_」という単語を削除した後です。EncryptedCookieStore (NameError) が取り除かれ、以下のエラーが表示されるようになりましたが、それらが関連しているかどうかはわかりません:
C:\ruby\rails_projects\demo_app>rails generate scaffold User name:string email:s
tring
invoke active_record
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/act
ive_record/dynamic_matchers.rb:55:in `method_missing': undefined method `migrati
on_error=' for ActiveRecord::Base:Class (NoMethodError)
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-3
.2.13/lib/active_record/railtie.rb:66:in `block (3 levels) in <class:Railtie>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-3
.2.13/lib/active_record/railtie.rb:65:in `each'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-3
.2.13/lib/active_record/railtie.rb:65:in `block (2 levels) in <class:Railtie>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-
3.2.13/lib/active_support/lazy_load_hooks.rb:36:in `instance_eval'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-
3.2.13/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-
3.2.13/lib/active_support/lazy_load_hooks.rb:43:in `block in run_load_hooks'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-
3.2.13/lib/active_support/lazy_load_hooks.rb:42:in `each'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-
3.2.13/lib/active_support/lazy_load_hooks.rb:42:in `run_load_hooks'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-3
.2.13/lib/active_record/base.rb:720:in `<top (required)>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/generators/named_base.rb:166:in `pluralize_table_names?'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/generators/named_base.rb:114:in `table_name'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-3
.2.13/lib/rails/generators/active_record/model/model_generator.rb:17:in `create_
migration_file'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/command.rb:27:in `run'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/invocation.rb:120:in `invoke_command'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/invocation.rb:127:in `block in invoke_all'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/invocation.rb:127:in `each'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/invocation.rb:127:in `map'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/invocation.rb:127:in `invoke_all'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/group.rb:233:in `dispatch'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/invocation.rb:109:in `invoke'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/group.rb:278:in `block in _invoke_for_class_method'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/shell.rb:74:in `with_padding'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/group.rb:267:in `_invoke_for_class_method'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/group.rb:150:in `_invoke_from_option_orm'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/command.rb:27:in `run'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/invocation.rb:120:in `invoke_command'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/invocation.rb:127:in `block in invoke_all'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/invocation.rb:127:in `each'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/invocation.rb:127:in `map'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/invocation.rb:127:in `invoke_all'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/group.rb:233:in `dispatch'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/thor-0.18.1/li
b/thor/base.rb:439:in `start'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/generators.rb:171:in `invoke'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/commands/generate.rb:12:in `<top (required)>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-
3.2.13/lib/active_support/dependencies.rb:251:in `require'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-
3.2.13/lib/active_support/dependencies.rb:251:in `block in require'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-
3.2.13/lib/active_support/dependencies.rb:236:in `load_dependency'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-
3.2.13/lib/active_support/dependencies.rb:251:in `require'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.1
3/lib/rails/commands.rb:29:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'