title: IOException: The process cannot access the file 'file path' because it is being used by another process
body: <p>I have some code and when it executes, it throws a <code>IOException</code>, saying that  </p>
  
  <blockquote>
    <p>The process cannot access the file 'filename' because it is being used by
    another process</p>
  </blockquote>
  
  <p>What does this mean, and what can I do about it?</p>