![當 usepackage ifthen、changepage、ifoddpage [關閉] 時， \@fileswith@pti@ns 的參數有一個額外的 }](https://rvso.com/image/405776/%E7%95%B6%20usepackage%20ifthen%E3%80%81changepage%E3%80%81ifoddpage%20%5B%E9%97%9C%E9%96%89%5D%20%E6%99%82%EF%BC%8C%20%5C%40fileswith%40pti%40ns%20%E7%9A%84%E5%8F%83%E6%95%B8%E6%9C%89%E4%B8%80%E5%80%8B%E9%A1%8D%E5%A4%96%E7%9A%84%20%7D.png)
當我使用\usepackage{ifthen}或/\usepackage{changepage}或/和\usepackage{ifoddpage}.
錯誤訊息:
​! 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{
最小程式碼：
\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}