The problem was that this file shouldn't actually be part of the agenda. If I really wanted to, I'd have to add the mode to it, like Carnsten and Bernt suggested.

Marcelo.

On Tue, Nov 29, 2011 at 12:36 PM, Carsten Dominik <carsten.dominik@gmail.com> wrote:

On 29.11.2011, at 18:39, Marcelo de Moraes Serpa wrote:

> Hi guys,
>
> I added my gtd.org_archive to the agenda as a mean of getting a timelog of tasks I complete. Recently, and I don't know why, it started to throw the following error when I try to access any of the agenda views:
>
> if: Agenda file ~/org/gtd.org_archive is not in `org-mode'
>
> Does anyone know why this happens?

The first line of that file should look like

-*- mode: org -*-

does it?

- Carsten