remaking the format produced no change but removing those files from the
cache did solve the problem.

thanks a lot!

On Sun, Aug 21, 2016 at 9:59 AM, Wolfgang Schuster <
schuster.wolfgang@gmail.com> wrote:

> Mohammad Hossein Bateni <bateni@gmail.com>
> 21. August 2016 um 12:53
> Hello,
>
> The code snippet at the end used to work a few months ago when I reported
> a rendering bug.  But now the font does not load and I see the following
> error.  (It's not an issue with simplefonts because \definedfont[KFGQPCUthmanTahaNaskh*arabic]
> does not work either.  the font is published here
> <http://fonts.qurancomplex.gov.sa/wp-content/uploads/2012/06/UthmanTN1-Ver10.zip>
> .
>
> Remake the format (context --make en) or delete the font entries
> (uthmantn1-ver10.tma|tmc) in the cache ($TEXMF/texmf-cache/luatex-
> cache/context/<HASH>/fonts/otl/). Please try both suggestions and report
> which of them helped.
>
> BTW: The simplefonts module has been replaced with the \definefontfamily
> command (different syntax but included in the core).
>
> %%%% begin example
> \definefontfamily[testfont][rm][KFGQPC Uthman Taha Naskh][features=arabic]
>
> \setupbodyfont[testfont]
>
> \starttext
> ...
> \stoptext
> %%%% end example
>
> Wolfgang
>
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