.net Framework

Hi , 
I am compiling the SFTP code using .net 4.0. 
I am getting the build error 
Error 16 The type or namespace name 'enumSSHAuthentication' could not be found (are you missing a using directive or an assembly reference?) C:\Work\TFS\DnB\Dunn_N_Bradstreet\Agents\DNB_ProcessXmls\DNB_ProcessXmls\FTP.cs 37 13 DNB_ProcessXmls
The version for SFTPLIB is and the description is SmartFTP FTP Library 4.0 Type Library . 

It seems that your code targets the old version (3.0) of the FTP Library but you have added a reference to the new version of the FTP Library (4.0). Please contact support for assistance.