The process cannot access the file 'C:Project\App_Data\Database.mdf' because it is being used by another process
<p>I'm getting the following error:</p>

<blockquote>
  <p>The process cannot access the file
  'C:Project\App_Data\Database.mdf'
  because it is being used by another
  process.</p>
</blockquote>

<p>How can I solve it?</p>
