rails heroku部署故障排除

| 因此，我创建了一个heroku应用程序，将其推上了db：migrate它。该应用程序在我的本地计算机上运行良好，但是在heroku上崩溃了。我是新手，不知道从哪里开始解决此问题。提前致谢！从创建应用到迁移的所有日志都在这里： 
2011-04-17T22:51:03-07:00 heroku[slugc]: Slug compilation finished
2011-04-18T05:51:07+00:00 app[web.1]: /app/.bundle/gems/ruby/1.8/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:239:in `require\': /app/app/controllers/users_controller.rb:28: syntax error, unexpected \'.\', expecting kEND (SyntaxError)
2011-04-18T05:51:07+00:00 app[web.1]: ...                             .paginate(:page => params[:page...
2011-04-18T05:51:07+00:00 app[web.1]:                               ^
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:239:in `require\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:227:in `load_dependency\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:239:in `require\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:346:in `require_or_load\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:300:in `depend_on\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:216:in `require_dependency\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/engine.rb:138:in `eager_load!\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/engine.rb:137:in `each\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/engine.rb:137:in `eager_load!\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/engine.rb:135:in `each\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/engine.rb:135:in `eager_load!\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/application.rb:108:in `eager_load!\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/application/finisher.rb:41
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/initializable.rb:25:in `instance_exec\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/initializable.rb:25:in `run\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/initializable.rb:50:in `run_initializers\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/initializable.rb:49:in `each\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/initializable.rb:49:in `run_initializers\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/application.rb:134:in `initialize!\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/application.rb:77:in `send\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/application.rb:77:in `method_missing\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/config/environment.rb:5
2011-04-18T05:51:07+00:00 app[web.1]:   from /usr/ruby1.8.7/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /usr/ruby1.8.7/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require\'
2011-04-18T05:51:07+00:00 app[web.1]:   from config.ru:3
2011-04-18T05:51:07+00:00 app[web.1]:   from /home/heroku_rack/heroku.ru:23
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/rack-1.2.2/lib/rack/builder.rb:46:in `instance_eval\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/rack-1.2.2/lib/rack/builder.rb:46:in `initialize\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/rack-1.2.2/lib/rack/builder.rb:63:in `new\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/rack-1.2.2/lib/rack/builder.rb:63:in `map\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /home/heroku_rack/heroku.ru:18
2011-04-18T05:51:07+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/rack-1.2.2/lib/rack/builder.rb:46:in `initialize\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /home/heroku_rack/heroku.ru:11:in `new\'
2011-04-18T05:51:07+00:00 app[web.1]:   from /home/heroku_rack/heroku.ru:1
2011-04-17T22:51:07-07:00 heroku[web.1]: State changed from starting to crashed
2011-04-17T22:51:07-07:00 heroku[web.1]: State changed from crashed to created
2011-04-17T22:51:07-07:00 heroku[web.1]: State changed from created to starting
2011-04-17T22:51:10-07:00 heroku[web.1]: State changed from created to starting
2011-04-18T05:51:11+00:00 app[web.1]: /app/.bundle/gems/ruby/1.8/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:239:in `require\': /app/app/controllers/users_controller.rb:28: syntax error, unexpected \'.\', expecting kEND (SyntaxError)
2011-04-18T05:51:11+00:00 app[web.1]: ...                             .paginate(:page => params[:page...
2011-04-18T05:51:11+00:00 app[web.1]:                               ^
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:239:in `require\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:227:in `load_dependency\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:239:in `require\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:346:in `require_or_load\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:300:in `depend_on\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:216:in `require_dependency\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/engine.rb:138:in `eager_load!\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/engine.rb:137:in `each\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/engine.rb:137:in `eager_load!\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/engine.rb:135:in `each\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/engine.rb:135:in `eager_load!\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/application.rb:108:in `eager_load!\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/application/finisher.rb:41
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/initializable.rb:25:in `instance_exec\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/initializable.rb:25:in `run\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/initializable.rb:50:in `run_initializers\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/initializable.rb:49:in `each\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/initializable.rb:49:in `run_initializers\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/application.rb:134:in `initialize!\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/application.rb:77:in `send\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/railties-3.0.5/lib/rails/application.rb:77:in `method_missing\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/config/environment.rb:5
2011-04-18T05:51:11+00:00 app[web.1]:   from /usr/ruby1.8.7/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /usr/ruby1.8.7/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require\'
2011-04-18T05:51:11+00:00 app[web.1]:   from config.ru:3
2011-04-18T05:51:11+00:00 app[web.1]:   from /home/heroku_rack/heroku.ru:23
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/rack-1.2.2/lib/rack/builder.rb:46:in `instance_eval\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/rack-1.2.2/lib/rack/builder.rb:46:in `initialize\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/rack-1.2.2/lib/rack/builder.rb:63:in `new\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/rack-1.2.2/lib/rack/builder.rb:63:in `map\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /home/heroku_rack/heroku.ru:18
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/rack-1.2.2/lib/rack/builder.rb:46:in `instance_eval\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/rack-1.2.2/lib/rack/builder.rb:46:in `initialize\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /home/heroku_rack/heroku.ru:11:in `new\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /home/heroku_rack/heroku.ru:11
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/rack-1.2.2/lib/rack/builder.rb:46:in `instance_eval\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /app/.bundle/gems/ruby/1.8/gems/rack-1.2.2/lib/rack/builder.rb:46:in `initialize\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /home/heroku_rack/heroku.ru:1:in `new\'
2011-04-18T05:51:11+00:00 app[web.1]:   from /home/heroku_rack/heroku.ru:1
2011-04-17T22:51:15-07:00 heroku[web.1]: State changed from starting to crashed
2011-04-18T05:51:21+00:00 heroku[router]: Error H10 (App crashed) -> GET indelearn.heroku.com/ dyno=none queue=0 wait=0ms service=0ms bytes=0
2011-04-17T22:51:22-07:00 heroku[nginx]: GET / HTTP/1.1 | 75.72.164.255 | 795 | http | 503
2011-04-18T05:51:22+00:00 heroku[router]: Error H10 (App crashed) -> GET indelearn.heroku.com/favicon.ico dyno=none queue=0 wait=0ms service=0ms bytes=0
2011-04-17T22:51:22-07:00 heroku[nginx]: GET /favicon.ico HTTP/1.1 | 75.72.164.255 | 795 | http | 503
2011-04-17T22:51:39-07:00 heroku[rake.1]: State changed from created to starting
2011-04-17T22:51:43-07:00 heroku[rake.1]: State changed from starting to up
2011-04-17T22:51:49-07:00 heroku[rake.1]: State changed from up to complete
2011-04-18T05:51:59+00:00 heroku[router]: Error H10 (App crashed) -> GET indelearn.heroku.com/ dyno=none queue=0 wait=0ms service=0ms bytes=0
2011-04-17T22:51:59-07:00 heroku[nginx]: GET / HTTP/1.1 | 75.72.164.255 | 795 | http | 503
2011-04-18T05:51:59+00:00 heroku[router]: Error H10 (App crashed) -> GET indelearn.heroku.com/favicon.ico dyno=none queue=0 wait=0ms service=0ms bytes=0
2011-04-17T22:51:59-07:00 heroku[nginx]: GET /favicon.ico HTTP/1.1 | 75.72.164.255 | 795 | http | 503
2011-04-18T05:52:00+00:00 heroku[router]: Error H10 (App crashed) -> GET indelearn.heroku.com/ dyno=none queue=0 wait=0ms service=0ms bytes=0
2011-04-17T22:52:00-07:00 heroku[nginx]: GET / HTTP/1.1 | 75.72.164.255 | 795 | http | 503
2011-04-18T05:52:01+00:00 heroku[router]: Error H10 (App crashed) -> GET indelearn.heroku.com/favicon.ico dyno=none queue=0 wait=0ms service=0ms bytes=0
2011-04-17T22:52:01-07:00 heroku[nginx]: GET /favicon.ico HTTP/1.1 | 75.72.164.255 | 795 | http | 503
users_contoller＃28是分页符，后面是一个很长的sql查询： 
@discussions = Discussion.find_by_sql(\"SELECT d.*, MAX(c.created_at) AS lastCommentTime 
                 FROM discussions d JOIN comments c ON d.id = c.commentable_id 
                 WHERE c.commentable_type = \'Discussion\' AND c.user_id = #{@user.id} 
                 GROUP BY d.id ORDER BY lastCommentTime DESC\")
                 .paginate(:page => params[:page], :per_page => 10)
因此，我删除了点之前的换行符，并已将其修复。谢谢你们的超能力！新手很难在该日志文件中发现关键错误行。 :)     
2020-05-12 2 条评论
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    伞腹

    堆栈跟踪在第28行提到ѭ2。此文件及其周围的代码是什么？您很可能会找到问题所在。 另外，我知道这听起来很傻，但是请三重检查所有内容是否都已签入Git存储库。由于Heroku是基于Git的，因此很容易忘记签入某些内容，并将“旧版本”应用“ 3”加载到服务器。     
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