这是主文件：
\documentclass[11pt,fleqn,twoside]{report}
\usepackage[utf8]{inputenc}
\usepackage{csquotes}
\usepackage{graphicx}
\usepackage{tikz}
\setcounter{tocdepth}{4}
\setcounter{secnumdepth}{4}
\usepackage{caption}
\usepackage{subcaption}
\usepackage{latexsym}
\usepackage{floatrow}
\usepackage{amsthm,amssymb}
\usetikzlibrary{arrows.meta,calc,positioning}
\tikzset{block/.style={draw,thick,text width=2cm,minimum height=1cm,align=center},
line/.style={-latex}
}
\usepackage{amsmath}
\usepackage{float}
\usepackage{morefloats}
\usepackage{longtable}
\usepackage{IEEEtrantools}
\usepackage{lineno,hyperref}
\usepackage{mathtools}
\modulolinenumbers[5]
\usepackage{makecell}
\usepackage{placeins}
\usepackage[english]{babel}
\usepackage{float}
\usepackage{booktabs}
\usepackage{tabularx}
\usepackage[figuresright]{rotating}
\usepackage{epstopdf}
\usepackage{xcolor}
\usepackage{xspace}
\usepackage{array}
\usepackage[T1]{fontenc}
\usepackage{enumerate}
\usepackage{parskip}
\usepackage{eucal}
\usepackage[boxruled,algochapter]{algorithm2e}
\usepackage{alphabeta}
\usepackage{subcaption}
\usepackage{pdflscape}
\usepackage{lipsum}
\usepackage{calc}
\newcommand\blfootnote[1]{%
\begingroup
\renewcommand\thefootnote{}\footnote{#1}%
\addtocounter{footnote}{-1}%
\endgroup
}
%--------------------------------------
\input{structure}
\begin{document}
%----------------------------------------
% TITLE PAGE
%--------------------------------------
\begingroup
\thispagestyle{empty}
\begin{tikzpicture}[remember picture,overlay]
\end{tikzpicture}
\vfill
\endgroup
%--------------------------------------
% TABLE OF CONTENTS
%---------------------------------------
\chapterimage{chapter_head_1.pdf}
\pagestyle{empty}
\tableofcontents
\listoftables
\listoffigures
\cleardoublepage
\pagestyle{fancy}
\pagenumbering{arabic}
\part{Part One}
%----------------------------------------
% CHAPTER 1
%---------------------------------------
\chapterimage{chapter_head_1.pdf}
\chapter{Chapter 1}
\input{ch1.tex}
% more chapters are included
%--------------------------------------
% BIBLIOGRAPHY
%----------------------------------------
\chapterimage{chapter_head_1.pdf}
\chapter*{Bibliography}
\addcontentsline{toc}{chapter}{\textcolor{blue}{Bibliography}}
\bibliographystyle{abbrvnat}
\addbibresource{References.bib}
\printbibliography
%---------------------------------------
% INDEX
%----------------------------------------
\cleardoublepage
\phantomsection
\setlength{\columnsep}{0.75cm}
\addcontentsline{toc}{chapter}{\textcolor{blue}{Index}}
\printindex
%---------------------------------------
\end{document}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
为什么我会收到多个类似下面的引用相关消息？此外，文档也没有显示。我提供了主文件和结构文件以供参考。我在 overleaf 中使用 pdfLaTex 进行了编译。
- 第 2 页上的引用‘1.1’在输入行 10 上未定义。&
- 命令@parboxrestore 已改变。
References.bib 中的典型条目
@book{1.1,
title={Routing in the Internet},
author={Huitema, Christian},
year={1995},
publisher={Prentice-Hall, Inc.}
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
结构文件如下所示：
%-----------------------------------
% VARIOUS REQUIRED PACKAGES AND CONFIGURATIONS
%--------------------------------
\usepackage[top=3cm,bottom=3cm,left=3cm,right=3cm,headsep=10pt,a4paper]{geometry}
\usepackage{graphicx}
\graphicspath{{Pictures/}}
\usepackage{lipsum}
\usepackage{tikz}
\usepackage[english]{babel}
\usepackage{enumitem}
\setlist{nolistsep}
\usepackage{booktabs}
\usepackage{hyperref}
\usepackage{xcolor}
\definecolor{blue}{RGB}{243,102,25}
-------------------------------------------
% FONTS
--------------------------------------------
\usepackage{avant}
\usepackage{mathptmx}
\usepackage{microtype}
\usepackage[T1]{fontenc}
-----------------------------
% BIBLIOGRAPHY AND INDEX
----------------------------------
\usepackage[style=numeric,citestyle=numeric,sorting=nyt,sortcites=true,autopunct=true,autolang=hyphen,hyperref=true,abbreviate=false,backref=true]{biblatex}
\addbibresource{References.bib}
\defbibheading{bibempty}{}
\usepackage{calc}
\usepackage{imakeidx}
\makeindex
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%