我是 LaTeX 的新手，正在使用 Texstudio。我需要以 APA 格式引用，似乎已经配置了我的文件以正确使用 Jabref。但是，我收到了很多黄色警告
引用 ** 未定义。
Jabref 中的引文似乎已正确加载。这是我的代码。我没有apacite.sty手动安装任何文件。我需要这样做吗？抱歉，我已阅读但对 CTAN 文档感到困惑。非常感谢。
\usepackage{apacite}
\bibliographystyle{apacite}
\bibliography{bibliography}
\label{Bibliography}
\lhead{\emph{Bibliography}} % Change the page header to say "Bibliography"
编辑：我应该补充一下，我的参考文献中大约 70% 是有效的。
编辑2：
这是我的课程。据我所知，我没有加载任何与参考书目相关的包。
\documentclass[12pt, a4paper, oneside]{book}
这些链接可以正常工作：
\cite{aveyard2014doing}
@Book{aveyard2014doing,
Title = {Doing a Literature Review in Health and Social Care},
Author = {Aveyard, Helen},
Publisher = {McGraw-Hill Education (UK)},
Year = {2014}
}
\cite{bridgstock2009graduate}
@Article{bridgstock2009graduate,
Title = {The graduate attributes we’ve overlooked:
Enhancing graduate employability through career management skills},
Author = {Bridgstock, Ruth},
Journal = {Higher Education Research \& Development},
Year = {2009},
Number = {1},
Pages = {31--44},
Volume = {28},
Publisher = {Taylor \& Francis}
}
然后，不起作用：
\citeA{knight2002employability}
@Article{knight2002employability,
Title = {Employability through the curriculum},
Author = {Knight, Peter and Yorke, Mantz},
Journal = {Tertiary Education and Management},
Year = {2002},
Number = {4},
Pages = {261-276},
Volume = {8},
Publisher = {Springer}
}
\cite{tomlinson2010investing}
@Article{tomlinson2010investing,
Title = {Investing in the self: structure, agency and identity in graduates' employability},
Author = {Tomlinson, Michael},
Journal = {Education, Knowledge \& Economy},
Year = {2010},
Number = {2},
Pages = {73--88},
Volume = {4},
Publisher = {Taylor \& Francis}
}