Can't pull from Heroku. Couldn't find remote ref master
<p>This is what I did:</p>

<pre><code>heroku git:remote -a myapp

git pull heroku master

fatal: Couldn't find remote ref master
</code></pre>

<p>myapp is an existing project, it is not new.</p>

<p>What am I doing wrong? How can I pull from Heroku?. Which branch name should I use?</p>

<p><strong>Edit</strong></p>

<p>The output of git remote -v:</p>

<pre><code>heroku  https://git.heroku.com/myapp.git (fetch)
heroku  https://git.heroku.com/myapp.git (push)
origin  git@git.fullstack.ec:misuper/myapp.git (fetch)
origin  git@git.fullstack.ec:misuper/myapp.git (push)
</code></pre>

<p>Also, I tried <code>git clone</code> in a new folder and it gives me the message "You appear to have cloned an empty repository". It is not empty.</p>

<p>And I tried doing the same thing with a different app and it worked correctly. </p>

<p>I'm lost here.</p>