title: Trying to migrate
body: <p>I am trying to migrate my project on my virtual environment for the very first time and this is the message.</p>
  
  <pre><code>python manage.py migrate 
  
  traceback(most recent call last):
  File "manage.py"line 21, in &lt;module&gt;
  main()
  </code></pre>
  
  <p>and there are very statements similar to the one above and it finishes with the last message </p>
  
  <pre><code>conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
  django.db.utils.operationalerror
  </code></pre>
  
  <p>My virtual environment running with </p>
  
  <ul>
  <li>django 2.2.2 </li>
  <li>psycopg2 2.8.3</li>
  <li>pytz 2019.1</li>
  <li>sqlparse 0.3.0</li>
  <li>python3.7</li>
  <li>pip 19.1.1</li>
  </ul>
  
  <p>on windows 7</p>
  
  <p>unable to migrate.</p>