无法创建参考书目“未定义的控制序列......”

Question

我需要参考书目的帮助。基本上看完了所有教程并做了所有创建参考资料的工作后，我仍然无法解决这个错误。

documentclass[12pt,a4paper]{article}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage[T1]{fontenc}
\setlength\headheight{16pt}
\usepackage[doublespacing]{setspace}
\usepackage{graphicx}
\usepackage{tabularx}
\usepackage{lmodern}
\usepackage{kpfonts}
\usepackage[left=2cm,right=2cm,top=2.5cm,bottom=3cm]{geometry}
\usepackage{fancyhdr}
\usepackage[small]{titlesec}
\usepackage{float}

\pagestyle{fancy}

\lhead{HTWK-Leipzig}
\rhead{Lxe}
\author{Lxe}
\title{Bachelor}
\date{04.05.2021}
\begin{document}
\begin{doublespace}

\maketitle
\pagebreak

\tableofcontents
\pagebreak

\section{Preamble}

\subsection{Personal motivation}

Its ... \cite{waziri2013properties}... lack facilities for testing and technology for computing. With the following discoveries a manual on how to create a strong brick with simple methods and high economical benefit should be deducible.
\subsection{Structure}
First of all the ... masonry bricks.
\section{Abstract}
\pagebreak

\section{Construction methods in third world countries, current state of art}
\subsection{Range of materials}
The ... the fire alive are constantly exposed to the smoke. Experiences have shown that unless its done in huge quantities in the right facility its not worth it compared to concrete or mud bricks.
\end{doublespace}
\bibliographystyle{apacite}
\bibliography{references.bib}
\end{document}

bib 文件如下所示：

@article{waziri2013properties,
  title={Properties of compressed stabilized earth blocks (CSEB) for low-cost housing construction: a preliminary investigation},
  author={Waziri, Baba Shehu and Lawan, Zanna Alhaji and others},
  year={2013}
}

@article{rigassi1985compressed,
  title={Compressed earth blocks: Manual of production},
  author={Rigassi, Vincent and others},
  year={1985},
}

@article{deboucha2011review,
  title={A review on bricks and stabilized compressed earth blocks},
  author={Deboucha, Sadek and Hashim, Roslan},
  year={2011}
}

@article{MOSTAFA201653,
title = {Experimental analysis of Compressed Earth Block (CEB) with banana fibers resisting flexural and compression forces},
year = {2016},
}