It's solved.

I don't know why, but I have to allways use FB 2.5 client, even to access FB 2.0 server (if I use FB 2.0 client & FB 2.0 server I can't get error messages).

Thank you.

--- In firebird-support@yahoogroups.com, "marc_guillot" <marc_guillot@...> wrote:
>
> Hello.
>
> I have installed FB 2.5 in port 3051 in my server beside a previously installed FB 2.0.
>
> It works perfectly well, I can use both of them with no problems.
>
> But I have screwed up all error messages. Now I never get a descriptive message, instead I get strings like :
>
> I/O error during "@1" operation for file "@2"
>
> I want to maintain both servers (FB 2.0 & 2.5) but I need to retrieve descriptive messages, it's a nightmare to develope being blind (I can't see what fields or tables provoke the errors).
>
> Normally I use FB 2.0 client against FB 2.0 server (port 3050).
>
> ¿ What can I have done wrong ?.
>
> Thank you.
>