рубин на рельсах новый проект gemfile error

Question

Недавно я установил и создал новый проект, я выполнил руководство по рельсам (http://guides.rubyonrails.org/getting_started.html), и все было в порядке.

Теперь, когда я попытался создать новый проект и запустить сервер я получаю это:

=> Booting WEBrick 
=> Rails 4.0.0 application starting in development on http://0.0.0.0:3000 
=> Run `rails server -h` for more startup options 
=> Ctrl-C to shutdown server 
[2013-09-09 15:28:55] INFO WEBrick 1.3.1 
[2013-09-09 15:28:55] INFO ruby 2.0.0 (2013-06-27) [x64-mingw32] 
[2013-09-09 15:28:55] INFO WEBrick::HTTPServer#start: pid=12064 port=3000 


Started GET "/" for 127.0.0.1 at 2013-09-09 15:28:56 +0100 

Gem::LoadError (Specified 'sqlite3' for database adapter, but the gem is not loa 
ded. Add `gem 'sqlite3'` to your Gemfile.): 
    activerecord (4.0.0) lib/active_record/connection_adapters/connection_specific 
ation.rb:58:in `rescue in resolve_hash_connection' 
    activerecord (4.0.0) lib/active_record/connection_adapters/connection_specific 
ation.rb:55:in `resolve_hash_connection' 
    activerecord (4.0.0) lib/active_record/connection_adapters/connection_specific 
ation.rb:46:in `resolve_string_connection' 
    activerecord (4.0.0) lib/active_record/connection_adapters/connection_specific 
ation.rb:30:in `spec' 
    activerecord (4.0.0) lib/active_record/connection_handling.rb:39:in `establish 
_connection' 
    activerecord (4.0.0) lib/active_record/railtie.rb:175:in `block (2 levels) in 
<class:Railtie>' 
    activesupport (4.0.0) lib/active_support/lazy_load_hooks.rb:38:in `instance_ev 
al' 
    activesupport (4.0.0) lib/active_support/lazy_load_hooks.rb:38:in `execute_hoo 
k' 
    activesupport (4.0.0) lib/active_support/lazy_load_hooks.rb:45:in `block in ru 
n_load_hooks' 
    activesupport (4.0.0) lib/active_support/lazy_load_hooks.rb:44:in `each' 
    activesupport (4.0.0) lib/active_support/lazy_load_hooks.rb:44:in `run_load_ho 
oks' 
    activerecord (4.0.0) lib/active_record/base.rb:322:in `<module:ActiveRecord>' 
    activerecord (4.0.0) lib/active_record/base.rb:22:in `<top (required)>' 
    activerecord (4.0.0) lib/active_record/query_cache.rb:50:in `restore_query_cac 
he_settings' 
    activerecord (4.0.0) lib/active_record/query_cache.rb:43:in `rescue in call' 
    activerecord (4.0.0) lib/active_record/query_cache.rb:32:in `call' 
    activerecord (4.0.0) lib/active_record/connection_adapters/abstract/connection 
_pool.rb:626:in `call' 
    activerecord (4.0.0) lib/active_record/migration.rb:369:in `call' 
    actionpack (4.0.0) lib/action_dispatch/middleware/callbacks.rb:29:in `block in 
call' 
    activesupport (4.0.0) lib/active_support/callbacks.rb:373:in `_run__342058401_ 
_call__callbacks' 
    activesupport (4.0.0) lib/active_support/callbacks.rb:80:in `run_callbacks' 
    actionpack (4.0.0) lib/action_dispatch/middleware/callbacks.rb:27:in `call' 
    actionpack (4.0.0) lib/action_dispatch/middleware/reloader.rb:64:in `call' 
    actionpack (4.0.0) lib/action_dispatch/middleware/remote_ip.rb:76:in `call' 
    actionpack (4.0.0) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `c 
all' 
    actionpack (4.0.0) lib/action_dispatch/middleware/show_exceptions.rb:30:in `ca 
ll' 
    railties (4.0.0) lib/rails/rack/logger.rb:38:in `call_app' 
    railties (4.0.0) lib/rails/rack/logger.rb:21:in `block in call' 
    activesupport (4.0.0) lib/active_support/tagged_logging.rb:67:in `block in tag 
ged' 
    activesupport (4.0.0) lib/active_support/tagged_logging.rb:25:in `tagged' 
    activesupport (4.0.0) lib/active_support/tagged_logging.rb:67:in `tagged' 
    railties (4.0.0) lib/rails/rack/logger.rb:21:in `call' 
    actionpack (4.0.0) lib/action_dispatch/middleware/request_id.rb:21:in `call' 
    rack (1.5.2) lib/rack/methodoverride.rb:21:in `call' 
    rack (1.5.2) lib/rack/runtime.rb:17:in `call' 
    activesupport (4.0.0) lib/active_support/cache/strategy/local_cache.rb:83:in ` 
call' 
    rack (1.5.2) lib/rack/lock.rb:17:in `call' 
    actionpack (4.0.0) lib/action_dispatch/middleware/static.rb:64:in `call' 
    railties (4.0.0) lib/rails/engine.rb:511:in `call' 
    railties (4.0.0) lib/rails/application.rb:97:in `call' 
    rack (1.5.2) lib/rack/lock.rb:17:in `call' 
    rack (1.5.2) lib/rack/content_length.rb:14:in `call' 
    rack (1.5.2) lib/rack/handler/webrick.rb:60:in `service' 
    C:/Ruby200-x64/lib/ruby/2.0.0/webrick/httpserver.rb:138:in `service' 
    C:/Ruby200-x64/lib/ruby/2.0.0/webrick/httpserver.rb:94:in `run' 
    C:/Ruby200-x64/lib/ruby/2.0.0/webrick/server.rb:295:in `block in start_thread' 



    Rendered C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.0/lib/action_d 
ispatch/middleware/templates/rescues/_source.erb (2.0ms) 
    Rendered C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.0/lib/action_d 
ispatch/middleware/templates/rescues/_trace.erb (2.0ms) 
    Rendered C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.0/lib/action_d 
ispatch/middleware/templates/rescues/_request_and_response.erb (2.0ms) 
    Rendered C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.0.0/lib/action_d 
ispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (122. 
1ms) 

Когда я открываю окно браузера я получаю

Gem :: LoadError Указано «sqlite3» для адаптера базы данных, но камень не загружен. Добавьте gem 'sqlite3' в свой Gemfile.

Что можно сделать, чтобы исправить это?

Answer 1

Согласно ошибке, вы должны добавить gemfile sqlite3 в ваш Gemfile (это обычный текстовый файл, который должен находиться в корневой папке Redmine). Редактировать и добавить что-то like.-

gem 'sqlite3' 

Вы также можете найти эту тему useful.-

Ruby on Rails - "Add 'gem sqlite3'' to your Gemfile"