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Ошибка Ruby on Rails MYSQL Доступ запрещен для пользователя root @localhost '

При запуске сервера rails с новым приложением появляется следующая ошибка:

/Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/mysql2-0.2.6/lib/mysql2/client.rb:37:in `connect ': доступ запрещен для user 'root' @'localhost' (с использованием пароля: YES) (Mysql2:: Ошибка)

Вот моя database.yml

# MySQL.  Versions 4.1 and 5.0 are recommended.
#
# Install the MySQL driver:
#   gem install mysql2
#
# And be sure to use new-style password hashing:
#   http://dev.mysql.com/doc/refman/5.0/en/old-client.html
development:
  adapter: mysql2
  encoding: utf8
  reconnect: false
  database: group_chat_development
  pool: 5
  username: root
  password: admin
  socket: /tmp/mysql.sock

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  adapter: mysql2
  encoding: utf8
  reconnect: false
  database: group_chat_test
  pool: 5
  username: root
  password: admin
  socket: /tmp/mysql.sock

production:
  adapter: mysql2
  encoding: utf8
  reconnect: false
  database: group_chat_production
  pool: 5
  username: root
  password: admin
  socket: /tmp/mysql.sock

Ниже приведено полное сообщение об ошибке

MacPro:FireDemon fred$ rails s
=> Booting Mongrel
=> Rails 3.0.3 application starting in development on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
Exiting
/Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/mysql2-0.2.6/lib/mysql2/client.rb:37:in `connect': Access denied for user 'root'@'localhost' (using password: YES) (Mysql2::Error)
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/mysql2-0.2.6/lib/mysql2/client.rb:37:in `initialize'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/mysql2-0.2.6/lib/active_record/connection_adapters/mysql2_adapter.rb:14:in `new'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/mysql2-0.2.6/lib/active_record/connection_adapters/mysql2_adapter.rb:14:in `mysql2_connection'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:228:in `new_connection'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:236:in `checkout_new_connection'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:190:in `block (2 levels) in checkout'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:186:in `loop'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:186:in `block in checkout'
    from /Users/fred/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:185:in `checkout'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:93:in `connection'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:316:in `retrieve_connection'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/connection_adapters/abstract/connection_specification.rb:97:in `retrieve_connection'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/connection_adapters/abstract/connection_specification.rb:89:in `connection'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/base.rb:1330:in `replace_bind_variables'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/base.rb:1317:in `sanitize_sql_array'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/base.rb:1224:in `sanitize_sql_for_conditions'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/relation/query_methods.rb:206:in `build_where'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/relation/query_methods.rb:77:in `where'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/base.rb:441:in `where'
    from /Users/fred/Desktop/FireDemon/app/models/user.rb:14:in `<class:User>'
    from /Users/fred/Desktop/FireDemon/app/models/user.rb:1:in `<top (required)>'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:454:in `load'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:454:in `block in load_file'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:596:in `new_constants_in'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:453:in `load_file'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:340:in `require_or_load'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:491:in `load_missing_constant'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:183:in `block in const_missing'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:181:in `each'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:181:in `const_missing'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/inflector/methods.rb:124:in `block in constantize'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/inflector/methods.rb:123:in `each'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/inflector/methods.rb:123:in `constantize'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/core_ext/string/inflections.rb:43:in `constantize'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activemodel-3.0.3/lib/active_model/observing.rb:182:in `observed_class'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activemodel-3.0.3/lib/active_model/observing.rb:175:in `observed_classes'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activemodel-3.0.3/lib/active_model/observing.rb:195:in `observed_classes'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activemodel-3.0.3/lib/active_model/observing.rb:191:in `initialize'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/observer.rb:96:in `initialize'
    from /Users/fred/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/singleton.rb:109:in `new'
    from /Users/fred/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/singleton.rb:109:in `block in instance'
    from <internal:prelude>:10:in `synchronize'
    from /Users/fred/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/singleton.rb:107:in `instance'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activemodel-3.0.3/lib/active_model/observing.rb:66:in `instantiate_observer'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activemodel-3.0.3/lib/active_model/observing.rb:39:in `block in instantiate_observers'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activemodel-3.0.3/lib/active_model/observing.rb:39:in `each'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activemodel-3.0.3/lib/active_model/observing.rb:39:in `instantiate_observers'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/railtie.rb:83:in `block (2 levels) in <class:Railtie>'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/lazy_load_hooks.rb:36:in `instance_eval'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/lazy_load_hooks.rb:26:in `on_load'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activerecord-3.0.3/lib/active_record/railtie.rb:82:in `block in <class:Railtie>'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/lazy_load_hooks.rb:34:in `call'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/lazy_load_hooks.rb:34:in `execute_hook'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/lazy_load_hooks.rb:43:in `block in run_load_hooks'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/lazy_load_hooks.rb:42:in `each'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/lazy_load_hooks.rb:42:in `run_load_hooks'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.3/lib/rails/application/finisher.rb:46:in `block in <module:Finisher>'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.3/lib/rails/initializable.rb:25:in `instance_exec'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.3/lib/rails/initializable.rb:25:in `run'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.3/lib/rails/initializable.rb:50:in `block in run_initializers'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.3/lib/rails/initializable.rb:49:in `each'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.3/lib/rails/initializable.rb:49:in `run_initializers'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.3/lib/rails/application.rb:134:in `initialize!'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.3/lib/rails/application.rb:77:in `method_missing'
    from /Users/fred/Desktop/FireDemon/config/environment.rb:5:in `<top (required)>'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:239:in `require'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:239:in `block in require'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:225:in `block in load_dependency'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:596:in `new_constants_in'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:225:in `load_dependency'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:239:in `require'
    from /Users/fred/Desktop/FireDemon/config.ru:3:in `block in <main>'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/rack-1.2.1/lib/rack/builder.rb:46:in `instance_eval'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/rack-1.2.1/lib/rack/builder.rb:46:in `initialize'
    from /Users/fred/Desktop/FireDemon/config.ru:1:in `new'
    from /Users/fred/Desktop/FireDemon/config.ru:1:in `<main>'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/rack-1.2.1/lib/rack/builder.rb:35:in `eval'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/rack-1.2.1/lib/rack/builder.rb:35:in `parse_file'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/rack-1.2.1/lib/rack/server.rb:162:in `app'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/rack-1.2.1/lib/rack/server.rb:248:in `wrapped_app'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/rack-1.2.1/lib/rack/server.rb:213:in `start'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.3/lib/rails/commands/server.rb:65:in `start'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.3/lib/rails/commands.rb:30:in `block in <top (required)>'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.3/lib/rails/commands.rb:27:in `tap'
    from /Users/fred/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.3/lib/rails/commands.rb:27:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'
MacPro:FireDemon fred$
4b9b3361

ОТВЕТЫ

Ответ 1

Похоже, ваш пользователь не может подключиться к базе данных MySQL. Попробуйте выполнить следующие команды в консоли:

mysql -u root -p

И при появлении запроса укажите пароль как "admin"

Если это возможно, тогда вам должно быть хорошо идти.

Ответ 2

Пароль неправильный для пользователя root в вашем файле config/database.yml. Вы всегда можете использовать команду mysqladmin, чтобы изменить пароль пользователя root, если вы забыли его.

Ответ 3

Handy home hint - Я тоже застрял в этом, но нашел, что loopback (127.0.0.1)!= 'localhost'... У меня был хост: 127.0.0.1 и видел эту точную проблему. Быстрое изменение на "localhost" исправило это для меня... надеюсь, что это поможет кому-то.

development:
 adapter: mysql2
 database: mydb
 host: localhost
 username: root
 password: mypass

Ответ 4

Ответ на ваш вопроs > Ошибка MYSQL Доступ запрещен для пользователя root @localhost

Применить пользователя root с паролем администратора к вашей базе данных group_chat_development MySQL

Обновление Мне приходит в голову, что вы не можете вообще использовать msQL для своих разработчиков и тестовых баз данных, и в этом случае измените настройки и настройки файла database.yml файла на

# SQLite version 3.x
#   gem install sqlite3-ruby (not necessary on OS X Leopard)
development:
  adapter: sqlite3
  database: db/development.sqlite3
  pool: 5
  timeout: 5000

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  adapter: sqlite3
  database: db/test.sqlite3
  pool: 5
  timeout: 5000

Если вы не знаете, как использовать инструменты MySQL, тогда вы должны привыкнуть к их использованию очень скоро, поскольку вам, скорее всего, понадобятся они в вашей рабочей серверной среде Вы найдете ссылки на соответствующую версию MySQL, которую вы используете здесь http://dev.mysql.com/doc/ Используйте MySQL Administrator для установки ваших прав пользователя.

Ответ 5

Если вы установили с помощью пакета oracle, попробуйте войти в свой mysql

mysql -u username

Затем запустите

FLUSH PRIVILEGES;

Затем установите пароль

SET PASSWORD FOR 'username'@'localhost' = PASSWORD('[password]');

Ответ 6

Если вы устанавливаете пароль root mysql в первый раз, введите следующие команды:

пароль mysqladmin

Вам будет предложено ввести новый пароль и подтвердить пароль.

После подтверждения попробуйте войти в систему с правами пользователя root и паролем, которые вы только что установили.

mysql root @'your-new-password'

Примечание. Вы должны войти в систему в качестве корня, тогда только вы сможете установить пароль mysql.

Спасибо.

Ответ 7

Итак, я застрял на некоторое время.

ПРОВЕРЬТЕ файл config/database.yml и проверьте свои настройки.

default: &default
  adapter: mysql2
  encoding: utf8
  pool: 5
  username: root
  password: root
  socket: ( check what your socket location is by typing mysqladmin version into termnal)

Затем перейдите в терминал и введите

mysql -u root -p

И НАКОНЕЦ Закрыть терминал и откройте его, затем

bundle instal

затем

rails s

Это похоже на то, что вам нужно снова установить пакет, чтобы изменения произошли.

Надеюсь, что это поможет!

Ответ 8

вы должны указать поле "host:" в devlepment в файле database.yml. это имя хоста должно быть адресом "IP", например "127.0.0.1" или что-то в этом роде. т.е. "host: 127.0.0.1" и снова перезапустите сервер и введите адрес, например "127.0.0.1:3000", здесь 3000 - это номер порта...