The requested URI is invalid for this FTP command.

Hi I m newbi for asp.net.(VB)
i m trying to upload files to ftp using below code and i m getting below error.
 Public Sub uploadFileUsingFTP(ByVal CompleteFTPPath As String, ByVal CompleteLocalPath As String, Optional ByVal UName As String = "", Optional ByVal PWD As String = "")
        Try
            'Create a FTP Request Object and Specfiy a Complete Path
            Dim reqObj As FtpWebRequest = WebRequest.Create(CompleteFTPPath)
            'Call A FileUpload Method of FTP Request Object
            'reqObj.UsePassive = False
            reqObj.Proxy = Nothing
      ...