latex - knitr compilation fails with R error message and babel package -


have @ minimal example. works fine when babel package commented out. 

\documentclass{article} \usepackage[dutch]{babel}  \begin{document} <<>>= abc() #a non-existing function @  \end{document}

with babel package error. error depends on language well. no error english, french or italian. error dutch, german or danish. problem seems occur languages have umlauts (ä, ö, ...)

! argument of \language@active@arg" has }. <inserted text>                  \par  l.67 ...\#\# error: not find function "abc"}                                                   }\end{kframe} i've run across `}' doesn't seem match anything. example, `\def\a#1{...}' , `\a}' produce error. if proceed now, `\par' i've inserted cause me report runaway argument might root of problem. if `}' spurious, type `2' , go away.

try:

\usepackage[t2a]{fontenc} \usepackage[utf8]{inputenc} \usepackage[dutch,english]{babel}

r , latex can have weird text encoding problems when using non-alphanumeric characters.


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