Latex 中缺少 \begin{document}

Missing \begin{document} in Latex

我在 Latex 中遇到错误。它发生在我写了 {fancy} 代码之后。有了这个错误,Latex 在我的文档中又添加了一页,它只是说

\documentclass[a4paper]{article}
\usepackage[english]{babel}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage{rotating}
\usepackage{graphicx}
\usepackage[colorinlistoftodos]{todonotes}
\usepackage{graphicx}
\usepackage{\centering}

\begin{document}
\title{\textbf{Economic Inequality in Turkey}}
\date{December 2014}
\pagebreak

text are here

\end{document}

一些错误是:

Undefined control sequence. \ ->\let \reserved@e \relax \let \reserved@f \relax \@ifstar {\let \reserv... l.10 The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., '\hobx'), type 'I' and the correct spelling (e.g., 'I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined.

Paragraph ended before \reserved@b was complete. \par l.10

Undefined control sequence. \@fileswith@pti@ns ...served@b \reserved@a ,\@nil ,}\fi \reserved@a l.10

LaTeX Error: Missing \begin{document}.

See the LaTeX manual or LaTeX Companion for explanation. Type H for immediate help. ...

我认为 \usepackage{\centering} 中的(第二个)反斜杠是一个拼写错误,请尝试将其删除。