🚀 go-pugleaf

I have a macro which uses nested tabular environments. To be precise,
the outer tabular environment has a p{...} column which contains
another tabular environment.

Now I've tried to replace the inner tabular environment by tabularx,
which does not work. Here is what I get:


Runaway argument?
 Erster \unskip \relax \@endpbox \hskip \col@sep 
! Forbidden control sequence found while scanning use of \TX@get@body.
<inserted text> 
                \par 
<to be read again> 
                   \endtemplate 
<template> ...ndpbox \hskip \col@sep \endtemplate 
                                                  
<argument> Erster &
                    Versuch dfhgkjdf kljkddhgkjd kljddhfgkjdf kjkddhgjkdf\\
\interf #1#2->\begin {tabularx}{5cm}{lX} #1
                                            \end {tabularx}\\\\\begin {tabul...
l.9 ...jdf kljkddhgkjd kljddhfgkjdf kjkddhgjkdf\\}
                                                  ^