title: database configuration does not specify adapter when preparing asset precompile
body: <p>I recently switched my test database to be postgrsql from sqlite3.  Since doing so, when I follow the instruction here: <a href="https://devcenter.heroku.com/articles/rails-asset-pipeline" rel="nofollow noreferrer">https://devcenter.heroku.com/articles/rails-asset-pipeline</a> on deploying my assets to heroku, I get the following error:</p>
  
  <pre><code>database configuration does not specify adapter
  </code></pre>
  
  <p>This happens after running this step</p>
  
  <pre><code>RAILS_ENV=production bundle exec rake assets:precompile
  </code></pre>
  
  <p>I tried following the instructions from this post and it did not work.</p>
  
  <p><a href="https://stackoverflow.com/questions/10879587/bundle-exec-rake-assetsprecompile-database-configuration-does-not-specify-ada">bundle exec rake assets:precompile - database configuration does not specify adapter</a></p>
  
  <p>I'm guessing it has something to do with my database.yml file, which is here</p>
  
  <pre><code>development:
    adapter: postgresql
    database: playerpong_database
    pool: 5
    timeout: 5000
    encoding: unicode
    host: localhost
  </code></pre>
  
  <p>Any ideas?</p>