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我加載了localhost：3000上的rails服務器，我得到了下面的錯誤。我發現這是導致問題的'rails_12factor'寶石。我使用這個gem來讓我的css在我的herokuapp上工作，但是它在localhost上造成了問題。有沒有辦法讓rails_12factor在本地工作？rails_12factor gem問題部署
我運行軌道4.0/2.0紅寶石，我聽到我需要 'rails_12factor' 得到的CSS與軌道4和Heroku的工作..
這是錯誤：
wrong number of arguments (0 for 1)
Rails.root: /home/brice/rails_projects/blog
Application Trace | Framework Trace | Full Trace
activesupport (4.0.0.rc1) lib/active_support/core_ext/kernel/reporting.rb:82:in `capture'
activerecord (4.0.0.rc1) lib/active_record/migration.rb:363:in `call'
actionpack (4.0.0.rc1) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (4.0.0.rc1) lib/active_support/callbacks.rb:392:in `_run__553013214532738530__call__callbacks'
activesupport (4.0.0.rc1) lib/active_support/callbacks.rb:80:in `run_callbacks'
actionpack (4.0.0.rc1) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (4.0.0.rc1) lib/action_dispatch/middleware/reloader.rb:64:in `call'
actionpack (4.0.0.rc1) lib/action_dispatch/middleware/remote_ip.rb:76:in `call'
actionpack (4.0.0.rc1) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
actionpack (4.0.0.rc1) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
railties (4.0.0.rc1) lib/rails/rack/logger.rb:38:in `call_app'
railties (4.0.0.rc1) lib/rails/rack/logger.rb:21:in `block in call'
activesupport (4.0.0.rc1) lib/active_support/tagged_logging.rb:67:in `block in tagged'
activesupport (4.0.0.rc1) lib/active_support/tagged_logging.rb:25:in `tagged'
activesupport (4.0.0.rc1) lib/active_support/tagged_logging.rb:67:in `tagged'
railties (4.0.0.rc1) lib/rails/rack/logger.rb:21:in `call'
actionpack (4.0.0.rc1) 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.rc1) 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.rc1) lib/action_dispatch/middleware/static.rb:64:in `call'
railties (4.0.0.rc1) lib/rails/engine.rb:511:in `call'
railties (4.0.0.rc1) lib/rails/application.rb:96: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'
/home/brice/.rvm/rubies/ruby-2.0.0-p195/lib/ruby/2.0.0/webrick/httpserver.rb:138:in `service'
/home/brice/.rvm/rubies/ruby-2.0.0-p195/lib/ruby/2.0.0/webrick/httpserver.rb:94:in `run'
/home/brice/.rvm/rubies/ruby-2.0.0-p195/lib/ruby/2.0.0/webrick/server.rb:295:in `block in start_thread'
我也可以提供其他文件，但我不知道在哪裏尋找。如果有人有一個想法如何解決這個問題，我將不勝感激！
您能夠運行耙分貝：遷移成功？ – usha
嘿Vimsha，我發現這是一個寶石問題，並修改了這個問題。但我沒有做rake db：在推向heroku之前遷移，是否可以解決新問題？ –