Not able to open the old oml file in service studio

Not able to open the old oml file in service studio

  
Hi all,

i am getting the error in the screenshot.
somebody please guide 
The error describes the opposite problem of your headline - the OML file is too NEW to be opened by Service Studio.  If you upgrade Service Studio to 9.1.0.20 you should be fine.  You can download it here - http://www.outsystems.com/home/downloads/