Well that's interesting. When I do C-u M-x org-reload and then call org-agenda, it displays correctly with no error. 

How do I debug? I already went into my config files and commented out all the code containing the word org-agenda, but the error still happens.

On Mon, Mar 7, 2016 at 6:09 AM, Nicolas Goaziou <mail@nicolasgoaziou.fr> wrote:

Hello,

Peter Salazar <cycleofsong@gmail.com> writes:

> I'm suddenly getting "byte-code: Wrong type argument: number-or-marker-p,
> nil" when I try to call org-agenda. This happens even when org-agenda-files
> is set to nil. Here's the backtrace. Any thoughts on how I can track down
> the source of the problem?

Could you provide the backtrace running un-compiled Org? It is just
a matter of calling C-u M-x org-reload.

Regards,

--
Nicolas Goaziou