title: What is "not something we can merge" error?
body: <p>I have a remote GitHub repository named "myRepository". Over there I have two branches: master, and test. I checked out these two branches to my work directories: c:\master, c:\test.</p>
  
  <p>When I am at c:\test I did <code>git merge master</code> and I got an error</p>
  
  <pre><code>merge: master - not something we can merge
  
  Did you mean this?
          remoterepo/master
  </code></pre>
  
  <p>Can you please explain this error to me? I was trying to merge test to master in my working directory (so c:\master will be update with c:\test code) and then I would like to push the updates to the remote master.</p>