title: git fetch upstream master not working, what is going wrong?
body: <p><a href="https://i.stack.imgur.com/bTYL7.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/bTYL7.png" alt="enter image description here"></a></p>
  
  <p>So I'm wondering if there is a problem with the upstream master? 
  I'm not sure if this error happens when everything is updated already or if it's something different.</p>
  
  <p>I have added upstream link with no problem, using 
  $ git remote add upstream <a href="https://github.com/udacity/course-collboration-travel-plans.git" rel="nofollow noreferrer">https://github.com/udacity/course-collboration-travel-plans.git</a></p>
  
  <p>just want to sync with the master now</p>