Hi,

I do still struggle with the creation of documentation derived from a source file. 
I tis quite difficult to nail down the hicking point. When I run context --ctx=s-mod test.tex
I get the following error:

pages           > flushing realpage 4, userpage 2
structure       > sectioning > subject @ level 3 : 0.0.0 -> Introduction
.Error: PDF file is damaged - attempting to reconstruct xref table...
Error: Couldn't find trailer dictionary
Error: Couldn't read xref table

!LuaTeX error: xpdf: reading PDF image failed

I do not know where to look...
The file test.run looks normal
The file test.tex.prep looks normal

Please refer to the test.tex file for testing.

Willi