title: Heroku fail to migrate due to ECONNREFUSED?
body: <p>When I tried to <code>heroku run rake db:migrate</code>, I was told that connection cannot be made. I'm using postgres locally. I can see my site loaded properly, but I can't access my models. How to fix this?</p>
  
  <pre><code>Rexs-MacBook-Pro:portfolio Rex$ heroku run rake db:migrate
  Running rake db:migrate on fathomless-mesa-1536... up, run.4069
   ▸    ECONNREFUSED: connect ECONNREFUSED 50.19.103.36:5000
  </code></pre>