--- In firebird-support@yahoogroups.com, "slalom91" <slalom91@...>
wrote:

>
> I am receiving the following message when attempting to connect to

v2.1

> Superserver:
>
> invalid parameter in transaction parameter block
>
> I have upgraded from v2.0. I have not changed anything else. The
> transaction parameters that are being used are:
>
> read_committed
> rec_version
> wait
>
> Any help would be appreciated.
>

It turns out that one of the parameters was actually duplicated.
When the duplicate parameter was removed, I was able to connect.