Argument von \@fileswith@pti@ns hat ein zusätzliches } bei usepackage ifthen, changepage, ifoddpage

Question

Wenn ich \usepackage{ifthen}oder/und \usepackage{changepage}oder/und verwende \usepackage{ifoddpage}.

Fehlermeldung:

&#8203;! Argument of \@fileswith@pti@ns has an extra }.<inserted text>\par \usepackage{

! Paragraph ended before \@fileswith@pti@ns was complete.<to be read again>\par \usepackage{

Minimaler Code:

\documentclass[a5paper,oneside,10pt]{article}
\usepackage[landscape,left=0.5cm,right=0.5cm,top=0.5cm,bottom=0.5cm]
\usepackage{ifthen}
\usepackage{changepage}
\usepackage{ifoddpage}
\begin{document}
abc
\end{document}