title: phpseclib NET_SFTP_STATUS_NO_SUCH_FILE: File not found when file DOES exist
body: <p>I am using phpseclib to upload a file to a remote server. Previously, my script worked fine, but a few weeks ago it appears to have stopped working. I am getting a  </p>
  
  <blockquote>
    <p><a href="https://github.com/phpseclib/phpseclib/blob/master/phpseclib/Net/SFTP.php#L303" rel="nofollow">NET_SFTP_STATUS_NO_SUCH_FILE</a>: File not found from $sftp->put.  </p>
  </blockquote>
  
  <p>The problem is that the file to be uploaded to the server does exist.  Plus, the code worked previously anyways.</p>
  
  <p>Since the script was previously working, it seems that maybe perhaps some settings for the target server may have changed. </p>
  
  <p>Does anyone have any ideas or suggestions for troubleshooting this?</p>