Forum rules
In order to help you, we need to know a lot of information. Make sure to include answers to at least the following questions in your initial post.
- what OS (Windows Xp/Vista, Mac etc.) are you running? - what FlightGear version do you use? - copy&paste your commandline.
They retired the older version due to velocity updates then the 11.7 was released for velocity however there were issues (not just with swift) so there is a newer version the 11.7 should not be used.