title: Why do I get "CommandError: App 'app_name' does not have migrations." when using Heroku?
body: <p>So I have deployed my Django project to Heroku, and now trying to migrate the database. I have everything working fine in my local sever. Then I tried to run the commands in heroku, as below.<br>
  <code>heroku run python manage.py makemigrations app_name'</code>. <br>
  This worked fine.</p>
  <pre><code>Migrations for 'app_name':
    contents\migrations\0001_initial.py
      - Create model Book   
      - Create model Category
      - Create model Content
  </code></pre>
  <p>Then of course, I tried : <code>heroku run python manage.py migrate app_name</code>.<br>
  But then I got this error <code>CommandError: App 'app_name' does not have migrations.</code><br><br>
  I've done some research for possible issues, none of which were relevant to mine.<br>
  For example I do have <code>__init__.py</code> in the <code>migrations</code> folder inside app_name directory. Also, I've tried <code>heroku run python manage.py migrate</code> as well as <code>heroku run python manage.py migrate app_name</code>. <br> I'm very confused. What do you think is the problem? Thanks in advance. :)</p>