How to deinstall rev 2.8.0 on a mac?

[Reinhold Venzl-Schubert]

Hi!

With rev 2.8.0 my learningprogram do not connect to the SQLite Datebase.
Therefore I deleted rev 2.8.0 to use rev 2.7.4 again.
But when I start my program (it is not a standalone) I get a error.
I think my mac is looking for the deleted rev 2.8.0.
How can I tell my mac to start my program with rev 2.7.4 as before.

Thanks
Reinhold