title: Heroku - Application Error
body: <p>I've created simple application with Ruby on Rails and I’ve tried to commit it on Heroku. I’ve followed this <a href="http://devcenter.heroku.com/articles/quickstart" rel="nofollow">Getting Started on Heroku guide</a>,
  I finished it and try to open my page but I still see an Error:
  Application Error:</p>
  
  <blockquote>
    <p>An error occurred in the application and your page could not be
    served. Please try again in a few moments.</p>
    
    <p>If you are the application owner, check your logs for details.</p>
  </blockquote>
  
  <p>Anybody know how to deal with it?</p>
  
  <hr>
  
  <p>I don’t know what was happen but I’ve done this step, unfortunately I have another problem, I run a few commands:</p>
  
  <blockquote>
    <p># <strong>git add .</strong><br>
     # <strong>git commit -m "my commit"</strong><br>
    On branch master nothing to commit (working directory clean)<br>
     # <strong>git push heroku
    master</strong> Everything up-to-date<br>
     # <strong>heroku open</strong> Opening
    http ://eerie-meadow-9207.heroku.com/<br>
     # <strong>heroku restart</strong>
    Restarting processes... done<br>
     # <strong>heroku open</strong> Opening
    http ://eerie-meadow-9207.heroku.com/</p>
  </blockquote>
  
  <p>And I see a message:</p>
  
  <blockquote>
    <p>We're sorry, but something went wrong.</p>
    
    <p>We've been notified about this issue and we'll take a look at it shortly.</p>
  </blockquote>
  
  <p>From <code>heroku logs</code> <em>[timestamps removed for clarity]</em>:</p>
  
  <pre><code>app[web.1]: Started GET "/" for 77.236.11.34 at 2011-10-31 11:50:38 -0700
  app[web.1]:   Processing by StoreController#index as HTML
  app[web.1]: Completed 500 Internal Server Error in 3ms
  heroku[router]: GET eerie-meadow-9207.heroku.com/ dyno=web.1 queue=0 wait=0ms service=13ms status=500 bytes=728
  heroku[nginx]: 77.236.11.34 - - [31/Oct/2011:11:50:38 -0700] "GET / HTTP/1.1" 500 728 "-" "Mozilla/5.0 (X11; U; Linux i686; pl-PL; rv:1.9.2.23) Gecko/20110921 Ubuntu/10.04 (lucid) Firefox/3.6.23" eerie-meadow-9207.heroku.com
  app[web.1]:
  heroku[web.1]: State changed from up to bouncing
  heroku[web.1]: State changed from bouncing to created
  heroku[web.1]: State changed from created to starting
  heroku[web.1]: Starting process with command `thin -p 40376 -e production -R /home/heroku_rack/heroku.ru start`
  heroku[web.1]: Process exited
  app[web.1]: &gt;&gt; Maximum connections set to 1024 
  app[web.1]: &gt;&gt; Listening on 0.0.0.0:40376, CTRL+C to stop
  app[web.1]: &gt;&gt; Thin web server (v1.2.6 codename Crazy Delicious)
  heroku[web.1]: State changed from starting to up
  app[web.1]:
  app[web.1]: Started GET "/" for 77.236.11.34 at 2011-10-31 11:50:59-0700
  app[web.1]:
  app[web.1]:   Processing by StoreController#index as HTML
  app[web.1]: Completed 500 Internal Server Error in 4ms
  app[web.1]:
  app[web.1]: ActiveRecord::StatementInvalid (PGError: ERROR:  relation "products" does not exist
  app[web.1]: :             SELECT a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a.attnotnull
  app[web.1]:               FROM pg_attribute a LEFT JOIN pg_attrdef d
  app[web.1]:         ON a.attrelid = d.adrelid AND a.attnum = d.adnum
  app[web.1]:              WHERE a.attrelid = '"products"'::regclass
  app[web.1]:           AND a.attnum &gt; 0 AND NOT a.attisdropped
  app[web.1]:              ORDER BY a.attnum
  app[web.1]: ):
  app[web.1]:   app/controllers/store_controller.rb:3:in `index'
  app[web.1]:
  app[web.1]:
  app[web.1]: cache: [GET /] miss
  heroku[router]: GET eerie-meadow-9207.heroku.com/ dyno=web.1 queue=0 wait=0ms service=81ms status=500 bytes=728
  heroku[nginx]: 77.236.11.34 - - [31/Oct/2011:11:50:59 -0700] "GET / HTTP/1.1" 500 728 "-" "Mozilla/5.0 (X11; U; Linux i686; pl-PL; rv:1.9.2.23) Gecko/20110921 Ubuntu/10.04 (lucid) Firefox/3.6.23" eerie-meadow-9207.heroku.com
  app[web.1]:
  app[web.1]:
  app[web.1]: Started GET "/" for 77.236.11.34 at 2011-10-31 11:54:00-0700
  app[web.1]:   Processing by StoreController#index as HTML
  </code></pre>
  
  <p>I cannot understand it because on my netbook it works on localhost, any ideas?</p>