title: FTP client subdirectory creation
body: <p>I am using FTPClient for creating a sub directory in the FTP server. I want to create a directory "Archive " under "Root".I use the following function for creating the sub directory.</p>
  
  <pre><code>boolean s = ftNew.makeDirectory("/"+folderName+"/Archive"); 
  </code></pre>
  
  <p>But it returns false and cannot create sub directory "Archive". How to solve this?</p>