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 wrote: > Hello, > > Peter Salazar 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 >