title: Github branch is ahead by 5 commits, how to fix?
body: <pre><code>Windows PowerShell
  Copyright (C) 2009 Microsoft Corporation. All rights reserved.
  
  C:\Users\Allen\Documents\GitHub\project2-pd7 [master]&gt; git status
  # On branch master
  # Your branch is ahead of 'origin/master' by 5 commits.
  #
  nothing to commit, working directory clean
  C:\Users\Allen\Documents\GitHub\project2-pd7 [master]&gt; git push
  Counting objects: 36, done.
  Delta compression using up to 4 threads.
  Compressing objects: 100% (15/15), done.
  Writing objects: 100% (30/30), 3.93 KiB, done.
  Total 30 (delta 8), reused 1 (delta 0)
  error: unpack failed: index-pack abnormal exit
  To https://github.com/stuycs-ml7/project2-pd7.git
   ! [remote rejected] master -&gt; master (unpacker error)
  error: failed to push some refs to 'https://github.com/stuycs-ml7/project2-pd7.git'
  </code></pre>
  
  <p>I'm still trying to find my sea legs with github, but these constant issues are killing me. Could anyone explain the solution in normalspeak so I could understand?</p>