title: Trying to git pull with error: cannot open .git/FETCH_HEAD: Permission denied
body: <p>Help me please, I am trying to run this in my terminal:</p>
  
  <pre><code>asgard@asgard-A7N8X2-0:~/CollegePortal$ git pull
  error: cannot open .git/FETCH_HEAD: Permission denied
  </code></pre>
  
  <p>Then I try this one</p>
  
  <pre><code>asgard@asgard-A7N8X2-0:~/CollegePortal$ sudo git pull
  Permission denied (publickey).
  fatal: The remote end hung up unexpectedly
  </code></pre>
  
  <p>Help me, I don't understand this problem.</p>