title: package folder already used in project netbeans
body: <p>I am trying to create a new project in netbeans. But when I add folder in the projects it always throws error: "package folder already used in project netbeans".</p>
  
  <p>I deleted all folders in <code>c:/users/../.netbeans/6.9/var/.</code> </p>
  
  <p>Still I am getting the same issue. The error mentions a folder already packaged as some old package name, but that old package name is not available in my system folders. Can anyone please help me?</p>