title: CVS says it knows nothing of a file it checked out
body: <p>I was trying to get the History of file from Tortoise CVS and i was getting the below error</p>
  
  <pre><code>cvs log: nothing known about [filename]
  </code></pre>
  
  <p>What should i be doing to resolve this, i did a fresh checkout and these files do come as part of the checkout, but any other workflow activity on them like log, remove etc does not work. </p>