title: eclipse and github: master: master rejected?
body: <p>I'm working with a friend using github and eclipse.  Initially he created the repository and pushed his code.  The only way I'm able to push my changes are to "force" them but this unfortunately wipes out his data and replaces it with mine.  If I uncheck the force option I see the following error when trying to push my changes:</p>
  
  <pre><code>master: master [rejected]
  </code></pre>
  
  <p>Do I need to start over and pull the source from the repository initially?</p>