在heroku上部署站点时出错

Question

所以我刚刚将我的网站部署到了heroku。在当地它显示罚款。我创建了一个名为welcome的新控制器，并带有索引视图。我还更新了我的路线文件夹。现在我在我的网站上收到一条错误消息 site

这里是我的heroku日志的剪辑，我认为问题是：

                        less-cov2012-09-08T15:58:07+00:00 app[web.1]:
                    2012-09-08T15:58:07+00:00 app[web.1]: cache: [GET /] miss
                    2012-09-08T15:58:07+00:00 app[web.1]:
                    2012-09-08T15:58:07+00:00 heroku[router]: GET limitless-cove-5100.herokuapp.com/
                     dyno=web.1 queue=0 wait=0ms service=978ms status=500 bytes=643

这是整个日志：

                    2012-09-08T16:09:15+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/railties-3
                    .2.1/lib/rails/rack/log_tailer.rb:14:in `call'
                    2012-09-08T16:09:15+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-1.4.1
                    /lib/rack/handler/webrick.rb:59:in `service'
                    2012-09-08T16:09:15+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/webrick/httpse
                    rver.rb:111:in `service'
                    2012-09-08T16:09:15+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/webrick/httpse
                    rver.rb:70:in `run'
                    2012-09-08T16:09:15+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/webrick/server
                    .rb:183:in `block in start_thread'
                    2012-09-08T16:09:15+00:00 app[web.1]:
                    2012-09-08T16:09:15+00:00 app[web.1]:
                    2012-09-08T16:09:15+00:00 app[web.1]: cache: [GET /] miss
                    2012-09-08T16:09:15+00:00 heroku[router]: GET limitless-cove-5100.herokuapp.com/
                     dyno=web.1 queue=0 wait=0ms service=6ms status=500 bytes=643
                    2012-09-08T16:09:21+00:00 app[web.1]:
                    2012-09-08T16:09:21+00:00 app[web.1]:
                    2012-09-08T16:09:21+00:00 app[web.1]: Started GET "/" for 66.241.75.198 at 2012-
                    09-08 16:09:21 +0000
                    2012-09-08T16:09:21+00:00 app[web.1]:
                    2012-09-08T16:09:21+00:00 app[web.1]: ActiveRecord::ConnectionNotEstablished (Ac
                    tiveRecord::ConnectionNotEstablished):
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activereco
                    rd-3.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:374:i
                    n `retrieve_connection'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activereco
                    rd-3.2.1/lib/active_record/connection_adapters/abstract/connection_specification
                    .rb:168:in `retrieve_connection'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activereco
                    rd-3.2.1/lib/active_record/connection_adapters/abstract/connection_specification
                    .rb:142:in `connection'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activereco
                    rd-3.2.1/lib/active_record/query_cache.rb:67:in `rescue in call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activereco
                    rd-3.2.1/lib/active_record/query_cache.rb:61:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activereco
                    rd-3.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:443:i
                    n `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/actionpack
                    -3.2.1/lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activesupp
                    ort-3.2.1/lib/active_support/callbacks.rb:405:in `_run__3191546681124262833__cal
                    l__697506052572710704__callbacks'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activesupp
                    ort-3.2.1/lib/active_support/callbacks.rb:405:in `__run_callback'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activesupp
                    ort-3.2.1/lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activesupp
                    ort-3.2.1/lib/active_support/callbacks.rb:81:in `run_callbacks'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/actionpack
                    -3.2.1/lib/action_dispatch/middleware/callbacks.rb:27:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/actionpack
                    -3.2.1/lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/actionpack
                    -3.2.1/lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/actionpack
                    -3.2.1/lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/railties-3
                    .2.1/lib/rails/rack/logger.rb:26:in `call_app'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/railties-3
                    .2.1/lib/rails/rack/logger.rb:16:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-1.4.1
                    /lib/rack/runtime.rb:17:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activesupp
                    ort-3.2.1/lib/active_support/cache/strategy/local_cache.rb:72:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/actionpack
                    -3.2.1/lib/action_dispatch/middleware/request_id.rb:22:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/actionpack
                    -3.2.1/lib/action_dispatch/middleware/static.rb:53:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-1.4.1
                    /lib/rack/methodoverride.rb:21:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-1.4.1
                    /lib/rack/lock.rb:15:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-cache
                    -1.2/lib/rack/cache/context.rb:136:in `forward'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-cache
                    -1.2/lib/rack/cache/context.rb:245:in `fetch'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-cache
                    -1.2/lib/rack/cache/context.rb:185:in `lookup'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-cache
                    -1.2/lib/rack/cache/context.rb:66:in `call!'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-cache
                    -1.2/lib/rack/cache/context.rb:51:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/railties-3
                    .2.1/lib/rails/engine.rb:479:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/railties-3
                    .2.1/lib/rails/application.rb:220:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-1.4.1
                    /lib/rack/content_length.rb:14:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/railties-3
                    .2.1/lib/rails/rack/log_tailer.rb:14:in `call'
                    2012-09-08T16:09:21+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-1.4.1
                    /lib/rack/handler/webrick.rb:59:in `service'
                    2012-09-08T16:09:21+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/webrick/httpse
                    rver.rb:111:in `service'
                    2012-09-08T16:09:21+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/webrick/httpse
                    rver.rb:70:in `run'
                    2012-09-08T16:09:21+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/webrick/server
                    .rb:183:in `block in start_thread'
                    2012-09-08T16:09:21+00:00 app[web.1]:
                    2012-09-08T16:09:21+00:00 app[web.1]:
                    2012-09-08T16:09:21+00:00 app[web.1]: cache: [GET /] miss
                    2012-09-08T16:09:21+00:00 heroku[router]: GET limitless-cove-5100.herokuapp.com/
                     dyno=web.1 queue=0 wait=0ms service=7ms status=500 bytes=643
                    2012-09-08T16:09:22+00:00 app[web.1]: cache: [GET /favicon.ico] miss, store
                    2012-09-08T16:09:22+00:00 heroku[router]: GET limitless-cove-5100.herokuapp.com/
                    favicon.ico dyno=web.1 queue=0 wait=0ms service=31ms status=200 bytes=0
                    2012-09-08T16:09:22+00:00 app[web.1]:
                    2012-09-08T16:09:22+00:00 app[web.1]:
                    2012-09-08T16:09:22+00:00 app[web.1]: Started GET "/apple-touch-icon-precomposed
                    .png" for 66.241.75.198 at 2012-09-08 16:09:22 +0000
                    2012-09-08T16:09:22+00:00 app[web.1]:
                    2012-09-08T16:09:22+00:00 app[web.1]: ActiveRecord::ConnectionNotEstablished (Ac
                    tiveRecord::ConnectionNotEstablished):
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activereco
                    rd-3.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:374:i
                    n `retrieve_connection'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activereco
                    rd-3.2.1/lib/active_record/connection_adapters/abstract/connection_specification
                    .rb:168:in `retrieve_connection'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activereco
                    rd-3.2.1/lib/active_record/connection_adapters/abstract/connection_specification
                    .rb:142:in `connection'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activereco
                    rd-3.2.1/lib/active_record/query_cache.rb:67:in `rescue in call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activereco
                    rd-3.2.1/lib/active_record/query_cache.rb:61:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activereco
                    rd-3.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:443:i
                    n `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/actionpack
                    -3.2.1/lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activesupp
                    ort-3.2.1/lib/active_support/callbacks.rb:405:in `_run__3191546681124262833__cal
                    l__697506052572710704__callbacks'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activesupp
                    ort-3.2.1/lib/active_support/callbacks.rb:405:in `__run_callback'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activesupp
                    ort-3.2.1/lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activesupp
                    ort-3.2.1/lib/active_support/callbacks.rb:81:in `run_callbacks'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/actionpack
                    -3.2.1/lib/action_dispatch/middleware/callbacks.rb:27:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/actionpack
                    -3.2.1/lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/actionpack
                    -3.2.1/lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/actionpack
                    -3.2.1/lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/railties-3
                    .2.1/lib/rails/rack/logger.rb:26:in `call_app'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/railties-3
                    .2.1/lib/rails/rack/logger.rb:16:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/actionpack
                    -3.2.1/lib/action_dispatch/middleware/request_id.rb:22:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-1.4.1
                    /lib/rack/methodoverride.rb:21:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-1.4.1
                    /lib/rack/runtime.rb:17:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/activesupp
                    ort-3.2.1/lib/active_support/cache/strategy/local_cache.rb:72:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-1.4.1
                    /lib/rack/lock.rb:15:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/actionpack
                    -3.2.1/lib/action_dispatch/middleware/static.rb:53:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-cache
                    -1.2/lib/rack/cache/context.rb:136:in `forward'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-cache
                    -1.2/lib/rack/cache/context.rb:245:in `fetch'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-cache
                    -1.2/lib/rack/cache/context.rb:185:in `lookup'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-cache
                    -1.2/lib/rack/cache/context.rb:66:in `call!'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/railties-3
                    .2.1/lib/rails/engine.rb:479:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-cache
                    -1.2/lib/rack/cache/context.rb:51:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/railties-3
                    .2.1/lib/rails/application.rb:220:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-1.4.1
                    /lib/rack/content_length.rb:14:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/railties-3
                    .2.1/lib/rails/rack/log_tailer.rb:14:in `call'
                    2012-09-08T16:09:22+00:00 app[web.1]:   vendor/bundle/ruby/1.9.1/gems/rack-1.4.1
                    /lib/rack/handler/webrick.rb:59:in `service'
                    2012-09-08T16:09:22+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/webrick/httpse
                    rver.rb:111:in `service'
                    2012-09-08T16:09:22+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/webrick/httpse
                    rver.rb:70:in `run'
                    2012-09-08T16:09:22+00:00 app[web.1]:   /usr/local/lib/ruby/1.9.1/webrick/server
                    .rb:183:in `block in start_thread'
                    2012-09-08T16:09:22+00:00 app[web.1]:
                    2012-09-08T16:09:22+00:00 app[web.1]:
                    2012-09-08T16:09:22+00:00 app[web.1]: cache: [GET /apple-touch-icon-precomposed.
                    png] miss
                    2012-09-08T16:09:22+00:00 heroku[router]: GET limitless-cove-5100.herokuapp.com/
                    apple-touch-icon-precomposed.png dyno=web.1 queue=0 wait=0ms service=6ms status=
                    500 bytes=643

Answer 1

确保您的Gemfile正在

 gem 'pg', :group => :production

由于heroku运行在Postgres上，它需要适配器。如果没有添加它并重新捆绑并推送你的Gemfile和Gemfile.lock并重新部署