Erreur interne du serveur Heroku 500

Question

Je suis en train de développer une application Ruby on Rails et je tente de la déployer avec Heroku, mais j'ai quelques erreurs que je ne peux pas résoudre. J'ai parcouru le journal de Heroku et je peux voir les détails mais je ne sais pas ce qui ne va pas. Le problème me semble provenir de mon fichier _header.html.erb mais je ne sais pas pourquoi. Toute aide serait appréciée Merci. Voici les journaux (mes excuses pour la longueur):

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.com/ 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.com 
2012-01-25T21:03:43+00:00 heroku[router]: GET young-fire-5944.heroku.com/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.com 
2012-01-25T21:06:42+00:00 heroku[router]: GET young-fire-5944.heroku.com/ 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.com 
2012-01-25T21:06:42+00:00 heroku[router]: GET young-fire-5944.heroku.com/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.com 
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 

Et voici ma tête:

<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> 

Et ce sont les 2 méthodes dans l'aide de la session mentionnée dans les journaux:

def user_from_remember_token 
     User.authenticate_with_salt(*remember_token) 
    end 

def current_user 
    @current_user ||= user_from_remember_token 
    end 

Answer 1

Je suppose que votre db sur heroku est désynchronisé. Essayez:

heroku run rake db:version 

Et si elle diffère de votre base de données locale alors:

heroku run rake db:migrate