Heroku 500内部服务器错误

本文介绍了Heroku 500内部服务器错误的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在开发一个Ruby on Rails应用程序并试图用Heroku进行部署，但是我有一些我无法解决的错误。我已经浏览了Heroku日志，可以看到详细信息，但我不知道什么是错的。这个问题在我看来是来自我的_header.html.erb文件，但我不知道为什么。任何帮助，将不胜感激。这里是日志（长度的道歉）：

I am developing a Ruby on Rails app and attempting to deploy it with Heroku however I have some errors that I cannot solve. I have gone through the Heroku log and can see the details but I don't know what is wrong. The problem appears to me to be coming from my _header.html.erb file but I don't know why. Any help would be appreciated thanks. Here are the logs (apologies for the length):

2012-01-25T21:03:09+00:00 heroku[web.1]: State changed from bouncing to created 2012-01-25T21:03:10+00:00 heroku[web.1]: State changed from created to starting 2012-01-25T21:03:10+00:00 heroku[slugc]: Slug compilation finished 2012-01-25T21:03:12+00:00 heroku[web.1]: Starting process with command `thin -p 20848 -e production -R /home/heroku_rack/heroku.ru start` 2012-01-25T21:03:13+00:00 heroku[web.1]: Stopping process with SIGTERM 2012-01-25T21:03:13+00:00 app[web.1]: >> Stopping ... 2012-01-25T21:03:13+00:00 heroku[web.1]: Process exited 2012-01-25T21:03:15+00:00 app[web.1]: >> Thin web server (v1.2.6 codename Crazy Delicious) 2012-01-25T21:03:15+00:00 app[web.1]: >> Maximum connections set to 1024 2012-01-25T21:03:15+00:00 app[web.1]: >> Listening on 0.0.0.0:20848, CTRL+C to stop 2012-01-25T21:03:15+00:00 heroku[web.1]: State changed from starting to up 2012-01-25T21:03:42+00:00 app[web.1]: 2012-01-25T21:03:42+00:00 app[web.1]: 2012-01-25T21:03:42+00:00 app[web.1]: Started GET "/" for 109.77.209.45 at 2012-01-25 13:03:42 -0800 2012-01-25T21:03:42+00:00 app[web.1]: Processing by PagesController#home as HTML 2012-01-25T21:03:42+00:00 app[web.1]: Rendered layouts/_stylesheets.html.erb (1.0ms) 2012-01-25T21:03:42+00:00 app[web.1]: Completed 500 Internal Server Error in 32ms 2012-01-25T21:03:42+00:00 app[web.1]: Rendered layouts/_header.html.erb (22.9ms) 2012-01-25T21:03:42+00:00 app[web.1]: Rendered pages/home.html.erb within layouts/application (27.6ms) 2012-01-25T21:03:42+00:00 heroku[router]: GET young-fire-5944.heroku/ dyno=web.1 queue=0 wait=0ms service=349ms status=500 bytes=728 2012-01-25T21:03:42+00:00 app[web.1]: ORDER BY a.attnum 2012-01-25T21:03:42+00:00 app[web.1]: WHERE a.attrelid = '"users"'::regclass 2012-01-25T21:03:42+00:00 app[web.1]: 2012-01-25T21:03:42+00:00 app[web.1]: : SELECT a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a.attnotnull 2012-01-25T21:03:42+00:00 app[web.1]: ActionView::Template::Error (PGError: ERROR: relation "users" does not exist 2012-01-25T21:03:42+00:00 app[web.1]: FROM pg_attribute a LEFT JOIN pg_attrdef d 2012-01-25T21:03:42+00:00 app[web.1]: ON a.attrelid = d.adrelid AND a.attnum = d.adnum 2012-01-25T21:03:42+00:00 app[web.1]: 4: <ul> 2012-01-25T21:03:42+00:00 app[web.1]: AND a.attnum > 0 AND NOT a.attisdropped 2012-01-25T21:03:42+00:00 app[web.1]: app/models/user.rb:43:in `authenticate_with_salt' 2012-01-25T21:03:42+00:00 app[web.1]: 3: <nav class="round"> 2012-01-25T21:03:42+00:00 app[web.1]: 5: <li><%= link_to "Home", root_path %></li> 2012-01-25T21:03:42+00:00 app[web.1]: 6: <% if signed_in? %> 2012-01-25T21:03:42+00:00 app[web.1]: 7: <li><%= link_to "Profile", current_user %></li> 2012-01-25T21:03:42+00:00 app[web.1]: 8: <li><%= link_to "Settings", edit_user_path(current_user) %></li> 2012-01-25T21:03:42+00:00 app[web.1]: 9: <% if current_user.admin? %> 2012-01-25T21:03:42+00:00 app[web.1]: 2012-01-25T21:03:42+00:00 app[web.1]: app/helpers/sessions_helper.rb:13:in `current_user' 2012-01-25T21:03:42+00:00 app[web.1]: app/helpers/sessions_helper.rb:42:in `user_from_remember_token' 2012-01-25T21:03:42+00:00 app[web.1]: app/views/layouts/application.html.erb:11:in `_app_views_layouts_application_html_erb__3812399716380071877_26136080_2104163587851409618' 2012-01-25T21:03:42+00:00 app[web.1]: app/views/layouts/_header.html.erb:6:in `_app_views_layouts__header_html_erb___2854373713478424086_25761700_4595791322741015980' 2012-01-25T21:03:42+00:00 app[web.1]: app/helpers/sessions_helper.rb:17:in `signed_in?' 2012-01-25T21:03:42+00:00 app[web.1]: 2012-01-25T21:03:42+00:00 app[web.1]: 2012-01-25T21:03:42+00:00 heroku[nginx]: 109.77.209.45 - - [25/Jan/2012:21:03:42 +0000] "GET / HTTP/1.1" 500 728 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.77 Safari/535.7" young-fire-5944.heroku 2012-01-25T21:03:43+00:00 heroku[router]: GET young-fire-5944.heroku/favicon.ico dyno=web.1 queue=0 wait=0ms service=32ms status=200 bytes=0 2012-01-25T21:03:43+00:00 heroku[nginx]: 109.77.209.45 - - [25/Jan/2012:21:03:43 +0000] "GET /favicon.ico HTTP/1.1" 200 0 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.77 Safari/535.7" young-fire-5944.heroku 2012-01-25T21:06:42+00:00 heroku[router]: GET young-fire-5944.heroku/ dyno=web.1 queue=0 wait=0ms service=14ms status=500 bytes=728 2012-01-25T21:06:42+00:00 heroku[nginx]: 109.77.209.45 - - [25/Jan/2012:21:06:42 +0000] "GET / HTTP/1.1" 500 728 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.77 Safari/535.7" young-fire-5944.heroku 2012-01-25T21:06:42+00:00 heroku[router]: GET young-fire-5944.heroku/favicon.ico dyno=web.1 queue=0 wait=0ms service=4ms status=200 bytes=0 2012-01-25T21:06:42+00:00 heroku[nginx]: 109.77.209.45 - - [25/Jan/2012:21:06:42 +0000] "GET /favicon.ico HTTP/1.1" 304 0 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.77 Safari/535.7" young-fire-5944.heroku 2012-01-25T21:06:42+00:00 app[web.1]: 2012-01-25T21:06:42+00:00 app[web.1]: 2012-01-25T21:06:42+00:00 app[web.1]: Started GET "/" for 109.77.209.45 at 2012-01-25 13:06:42 -0800 2012-01-25T21:06:42+00:00 app[web.1]: Processing by PagesController#home as HTML 2012-01-25T21:06:42+00:00 app[web.1]: Rendered layouts/_stylesheets.html.erb (0.5ms) 2012-01-25T21:06:42+00:00 app[web.1]: Rendered layouts/_header.html.erb (3.1ms) 2012-01-25T21:06:42+00:00 app[web.1]: Rendered pages/home.html.erb within layouts/application (4.9ms) 2012-01-25T21:06:42+00:00 app[web.1]: Completed 500 Internal Server Error in 6ms 2012-01-25T21:06:42+00:00 app[web.1]: 2012-01-25T21:06:42+00:00 app[web.1]: ActionView::Template::Error (PGError: ERROR: relation "users" does not exist 2012-01-25T21:06:42+00:00 app[web.1]: : SELECT a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a.attnotnull 2012-01-25T21:06:42+00:00 app[web.1]: FROM pg_attribute a LEFT JOIN pg_attrdef d 2012-01-25T21:06:42+00:00 app[web.1]: ON a.attrelid = d.adrelid AND a.attnum = d.adnum 2012-01-25T21:06:42+00:00 app[web.1]: WHERE a.attrelid = '"users"'::regclass 2012-01-25T21:06:42+00:00 app[web.1]: AND a.attnum > 0 AND NOT a.attisdropped 2012-01-25T21:06:42+00:00 app[web.1]: ORDER BY a.attnum 2012-01-25T21:06:42+00:00 app[web.1]: ): 2012-01-25T21:06:42+00:00 app[web.1]: 3: <nav class="round"> 2012-01-25T21:06:42+00:00 app[web.1]: 4: <ul> 2012-01-25T21:06:42+00:00 app[web.1]: 5: <li><%= link_to "Home", root_path %></li> 2012-01-25T21:06:42+00:00 app[web.1]: 7: <li><%= link_to "Profile", current_user %></li> 2012-01-25T21:06:42+00:00 app[web.1]: 8: <li><%= link_to "Settings", edit_user_path(current_user) %></li> 2012-01-25T21:06:42+00:00 app[web.1]: app/models/user.rb:43:in `authenticate_with_salt' 2012-01-25T21:06:42+00:00 app[web.1]: 9: <% if current_user.admin? %> 2012-01-25T21:06:42+00:00 app[web.1]: app/helpers/sessions_helper.rb:42:in `user_from_remember_token' 2012-01-25T21:06:42+00:00 app[web.1]: app/helpers/sessions_helper.rb:13:in `current_user' 2012-01-25T21:06:42+00:00 app[web.1]: 6: <% if signed_in? %> 2012-01-25T21:06:42+00:00 app[web.1]: app/views/layouts/application.html.erb:11:in `_app_views_layouts_application_html_erb__3812399716380071877_26136080_2104163587851409618' 2012-01-25T21:06:42+00:00 app[web.1]: app/helpers/sessions_helper.rb:17:in `signed_in?' 2012-01-25T21:06:42+00:00 app[web.1]: 2012-01-25T21:06:42+00:00 app[web.1]: 2012-01-25T21:06:42+00:00 app[web.1]: app/views/layouts/_header.html.erb:6:in `_app_views_layouts__header_html_erb___2854373713478424086_25761700_4595791322741015980' 2012-01-25T22:13:29+00:00 heroku[web.1]: Idling 2012-01-25T22:13:30+00:00 heroku[web.1]: State changed from up to down 2012-01-25T22:13:30+00:00 heroku[web.1]: State changed from down to created 2012-01-25T22:13:30+00:00 heroku[web.1]: State changed from created to starting 2012-01-25T22:13:31+00:00 heroku[web.1]: Stopping process with SIGTERM 2012-01-25T22:13:31+00:00 app[web.1]: >> Stopping ... 2012-01-25T22:13:31+00:00 heroku[web.1]: Process exited 2012-01-25T22:13:34+00:00 heroku[web.1]: Starting process with command `thin -p 24499 -e production -R /home/heroku_rack/heroku.ru start` 2012-01-25T22:13:37+00:00 app[web.1]: >> Maximum connections set to 1024 2012-01-25T22:13:37+00:00 app[web.1]: >> Listening on 0.0.0.0:24499, CTRL+C to stop 2012-01-25T22:13:37+00:00 app[web.1]: >> Thin web server (v1.2.6 codename Crazy Delicious) 2012-01-25T22:13:38+00:00 heroku[web.1]: State changed from starting to up 2012-01-25T23:17:36+00:00 heroku[web.1]: Idling 2012-01-25T23:17:37+00:00 heroku[web.1]: State changed from up to down 2012-01-25T23:17:39+00:00 heroku[web.1]: Stopping process with SIGTERM 2012-01-25T23:17:39+00:00 app[web.1]: >> Stopping ... 2012-01-25T23:17:40+00:00 heroku[web.1]: Process exited

这是我的标题：

And this is my header:

<header> <%= link_to logo, root_path %> <nav class="round"> <ul> <li><%= link_to "Home", root_path %></li> <% if signed_in? %> <li><%= link_to "Profile", current_user %></li> <li><%= link_to "Settings", edit_user_path(current_user) %></li> <% if current_user.admin? %> <li><%= link_to "Users", users_path%></li> <% end%> <li><%= link_to "Sign out", signout_path, :method => :delete %></li> <% else %> <li><%= link_to "Sign in", signin_path %></li> <% end %> </ul> </nav> </header>

这些是日志中提到的会话助手中的两种方法：

And these are the 2 methods in the session helper mentioned in the logs:

def user_from_remember_token User.authenticate_with_salt(*remember_token) end def current_user @current_user ||= user_from_remember_token end

推荐答案

我猜你在heroku上的db不同步。试试：

I guess your db on heroku is out of sync. Try:

heroku run rake db:version

如果它与本地数据库不同，那么：

And if it differs from your local db then:

heroku run rake db:migrate