我有以下 MWE：
\documentclass[showtrims, 10pt]{memoir}
\usepackage[backend=biber, style=iso-alphabetic]{biblatex}
\addbibresource{CS111.bib}
\begin{document}
\cite{Brookshear2019}
\printbibliography
\end{document}
我的 bib 文件包含以下内容：
\begin{thebibliography}{}
@Book{Brookshear2019,
title = {Computer Science: An Overview},
publisher = {Pearson},
year = {2019},
author = {J. Glenn Brookshear and Dennis Brylow},
editor = {PEARSON},
OPTkey = {},
OPTvolume = {},
OPTnumber = {},
OPTseries = {},
OPTaddress = {},
edition = {Global Edition},
OPTmonth = {},
OPTnote = {},
OPTannote = {},
url = {http://www.pearsonhighered.com/brookshear},
urldate = {},
OPTlastchecked = {},
OPTdoi = {},
isbn = {1292263423},
OPTissn = {},
OPTlocalfile = {},
OPTabstract = {},
OPTkeywords = {}
}
\end{thebibliography}
我正在执行：
latex CS111-ES
biber CS111-ES
latex CS111-ES
latex CS111-ES
ok，\cite{Brookshear2019}运行正常，输出类似：[BB19] 但是，\printbibliography没有打印任何内容
以前可以正常工作...但现在不行了。可能是某些更新导致了这个问题？