Compile error: ! Paragraph ended before \chapter was complete.

[wail-asad]

Platform : windows 11

Latex : Texlive 2022

This appeared at the following configurations

• style / language = en,
• \chapter{Introduction}

• There is empty line in code for example

  \chapter{Introduction}
  
  This the first part

• it will disappear if there is no line for example

  \chapter{Introduction}
  This the first part

  or if there is chinese title

  
  \chapter{Introduction}{Chinese title}

This the first part

or if the language is chinese  for example
`style / language = zh,`

[wail-asad]

@note286 could you please look for it.

[note286]

Are you going to write an English thesis? Or Chinese? I don't quite understand your problem. What do you think is wrong.

[note286]

According to the regulations of the university, the English thesis must have bilingual contents. The content level is 3.

\documentclass{xdupgthesis}
\xdusetup{style/language=en}
\begin{document}
\chapter{This Is Chapter}{这是一级标题}
This the text.
\section{This Is Section}{这是二级标题}
This the text.
\subsection{This Is Subsection}{这是三级标题}
This the text.
\subsubsection{This Is Subsubsection}
This the text.
\paragraph{This Is Paragraph}
This the text.
\subparagraph{This Is Subparagraph}
This the text.
\end{document}

[wail-asad]

Ok, noted thanks very much