--- In firebird-support@yahoogroups.com, Nick Upson <nick@u...> wrote:

> In article <c2q68l+32om@e...>, Alexander V.Nevsky wrote:
> > If I right understood, you renamed file to libudflocal? What for?
>
> I initially got a message something like "cannot access libudflocal.so"
> after the rename I got the invalid request message

Most probably that was another UDF which caused initial exception.
Examine your entire table RDB$FUNCTIONS.

Best regards,
Alexander.