Latex/Miktex:未定义的引用

Question

我正在为我的工作编写一个胶乳脚本，而且我在获取PDF中的引用方面遇到了无穷的困难。我的代码如下所示，我在RStudio上使用的是RStudio 2.9。一些可能相关的背景资料：

• 我正在使用Mendeley作为我的参考，我已经正确地设置了它以启用bibtex同步
• 在我看来.bib文件看起来并不奇怪(Irungu在下面添加)
• ，我使用的脚本与我的同事完全相同(除了引用我的文章的不同路径)，他们没有问题将它编译成pdf。
• 有关引用的错误是:在输入行的第1页上未定义的引用Draganovic2013，在输入行上没有定义的引用

。

我希望你们中的一个能帮到我！干杯!

@article{Irungu2019,
abstract = {A composite blend consisting of sunflower cake, maize germ, wheat bran, fresh water shrimps and cassava flour was extruded using a single-screw extruder to produce expanded fish feed pellets. The effects of temperature (80–120 °C), die diameter (2–4 mm), and feed pre-conditioning time (50–150 s; steam 400 kPa) on properties of the pellets (expansion ratio, bulk density, floatability, durability, water absorption, water solubility, water stability, and in-vitro protein digestibility) were investigated using response surface methodology. Regression equations describing the effect of each variable on the product responses were obtained. The pellets extruded using a factor combination of 120 °C extruder barrel temperature, 2 mm die diameter, and 100 s of feed pre-conditioning time gave most desirable pellet floatability (100{\%}), durability index (99{\%}), expansion ratio (2.64), water absorption index (4.12), water solubility index (9.31), water stability (87{\%}), bulk density (479 g/L), and in vitro protein digestibility (69.97{\%}) with a composite desirability of 0.88. Practical applications: Extrusion is a modern feed processing method whose use is fast gaining popularity among small feed processors in developing countries. However, extrusion is a process that involves many parameters that need to be optimized for desirable end properties. These findings guide fish feed manufacturers on the optimum conditions for single screw extruders for production of feeds with desirable properties especially for the fish types that are top feeders. In addition, the results offer important insights on how temperature, die diameter, and feed pre-conditioning, may be manipulated to influence properties of extruded aquafeed when using simple low-cost small-scale extruders.},
author = {Irungu, Francis Gichuho and Mutungi, Christopher and Faraj, Abdul and Affognon, Hippolyte and Ekesi, Sunday and Nakimbugwe, Dorothy and Fiaboe, Komi K.M.},
doi = {10.1111/jfpe.12980},
file = {:L$\backslash$:/Marjanne/ScientificArticles/Irungu2019.pdf:pdf},
issn = {17454530},
journal = {Journal of Food Process Engineering},
number = {2},
pages = {1--12},
title = {{Optimization of extruder cooking conditions for the manufacture of fish feeds using response surface methodology}},
volume = {42},
year = {2019}
}

\documentclass[10pt,a4paper]{article}
\usepackage{etoolbox}
\usepackage{mathpazo}
\renewcommand{\sfdefault}{lmss}
\renewcommand{\ttdefault}{lmtt}
\usepackage{geometry}
\usepackage[usenames,dvipsnames]{xcolor}
% \geometry{verbose,tmargin=2cm,bmargin=2cm,lmargin=2.5cm,rmargin=2.5cm}
\geometry{verbose,tmargin=2cm,bmargin=2cm,lmargin=2.5cm,rmargin=2.5cm}
\usepackage[margin=10pt,font=small,labelfont=bf,labelsep=colon]{caption}
\usepackage{amstext}
%% \usepackage{esint}
\usepackage[english]{babel}
\usepackage{eurosym}
\usepackage{booktabs}
\usepackage[parfill]{parskip}
\usepackage[round]{natbib}
%\usepackage{caption}
\usepackage{pdfpages}
\usepackage[figuresright]{rotating}
\usepackage{longtable}
\usepackage[version=4]{mhchem}
\usepackage{todonotes}
\usepackage{hyperref}
\usepackage{subfig}
\usepackage{array}
\usepackage{float}
\usepackage{lipsum}
\usepackage{lastpage}
\usetikzlibrary{patterns}
\usetikzlibrary{shapes.geometric}
\usepackage{textcomp}


\begin{document}


\title[Title of Document]

\begin{document}

\begin{titlepage}
\maketitle
\end{titlepage}

\section {Introduction}
Introduction is written here, but not relevant for this question.


\section {Background} 
Here I write some text and refer to an article of Draganovic from 2013 \citep{Draganovic2013}. \\
In another section, I would like to refer to Irungu from 2019 \citep{Irungu2019}.\\
Current project will investigate the possibilities to re-evaluate Sustainable Fiber Technology's Wheat Straw Co-Product, by using it as a (partial) replacement of wheat gluten and/or starch in aquafeed. Being relatively high in lignin (20 - 40\% based on 30 - 50\% solids), the product is a potential excellent binder.

\section {Rest of the document}

Doesn't pose any significant errors.

 \bibliographystyle{plainnat}
 \bibliography{C://Users/Marjanne/Documents/April8/library}




\end{document}

Answer 1

我对这个LaTeX代码没有任何问题(即使我使用Mac)：无论如何，在您的代码中有一些问题：

\title{Title of Document}

• There is 2 \begin{document}：我不知道这是否只是一个错误，当您在这里复制代码时，

您确定.bib文件的路径是正确的吗？我建议只编写\bibliography{library}，并将library.bib文件放在您正在处理的tex文件的同一个目录中。

此外，还可以在https://tex.stackexchange.com/上了解有关Tex、LaTeX的问题。

编辑:确保您正在使用

• pdflatex (或latex)
• bibtex
• pdflatex )或latex)
• pdflatex (或latex)

)

Answer 2

首先运行pdflatex“文件”“-interaction=nonstopmode然后biber”文件“然后再运行pdflatex”文件“-interaction=nonstopmode”

应起作用