来自 make title 命令的未定义控制序列错误

Question

当我编译文档时，我的标题、作者、摘要和关键词看起来都很好，但我的\maketitle行上一直出现错误消息“未定义控制序列”。我的代码是：

%% http://www.ieee.org/
\documentclass{ieeeaccess}

% *** CITATION PACKAGES ***
\usepackage{cite}

% *** GRAPHICS RELATED PACKAGES ***
 \usepackage[]{graphicx}
\usepackage{subcaption}
\usepackage{caption}
\usepackage{amsmath,amssymb,amsfonts}
 \usepackage{float}
 \usepackage{siunitx}
 \usepackage{ragged2e}
 \usepackage{textcomp}
 \usepackage{algorithmic}
\usepackage{alphabeta}


\begin{document}
% correct bad hyphenation here
\hyphenation{ex-ample}


%
\title{Title example}

\author{Author~1, Author~2, Author~3,
        and~Author~4,~\IEEEmembership{Member,~IEEE}
        \thanks{Thanks example}}

\date{date example}

% The paper headers
\markboth{IEEE Access, Second mark}%
{Second mark}

% make the title area

\begin{abstract}
Abstract text
\end{abstract}


\begin{keywords}
Keywords text
\end{keywords}


\maketitle
\IEEEpeerreviewmaketitle


\section{Introduction}
...
Document Text
...
\EOD
\end{document}

Answer 1

您需要指定一个\doi{<doi>}：

% https://ieeeaccess.ieee.org/submitting-an-article/
\documentclass{ieeeaccess}

\usepackage{graphicx}

\begin{document}

\title{Title example}

\author{%
  Author~1, Author~2, Author~3,
  and~Author~4,~\IEEEmembership{Member,~IEEE}
  \thanks{Thanks example}}

\date{date example}

\doi{10.1109/ACCESS.2017.DOI}

% The paper headers
\markboth
  {IEEE Access, Second mark}%
  {Second mark}

% make the title area
\begin{abstract}
Abstract text
\end{abstract}

\begin{keywords}
Keywords text
\end{keywords}

\maketitle
\IEEEpeerreviewmaketitle

\section{Introduction}
...
Document Text
...
\EOD

\end{document}