On 01 Aug 2014, at 13:30, Gerben Wierda <gerben.wierda@rna.nl> wrote:
> […]
> I’ve tried to add this to my environment and product file, but even without using it, it ends in an error:
> 
> (/usr/local/texlive/2014/texmf-dist/tex/context/base/spec-tpd.mkii
> specials        : loading definition file fdf
> (/usr/local/texlive/2014/texmf-dist/tex/context/base/spec-fdf.mkii))
> ! Undefined control sequence.
> l.5  {\doifcheckedpagestate
>                            {#5}%
> ?
> 
> G

Hi Gerben,

I think you are using mkii, while the code sent by Hans and containing
	\doifcheckedpagestate
is intended for use with mkiv.

Best regards: OK