Latex报"Missing $ inserted"的解决方法

出现错误说明：

编译出现这样的错误。原因是在图的caption里使用了下标线“_”。因为latex会把它作为有特殊意义的标号或作为数学模式(math mode)进行编译。

\begin{figure*}[t]
%\setlength{\abovecaptionskip}{20pt}
 % \addtolength{\subfigcapskip}{5pt}
\normalsize
  \centering
  \subfigure[Queue Length of E_1]{  //说明：就是这里的下标线出错，改成E\_1即可
    \label{xx} %% label for first subfigure
    \includegraphics[height=5.2cm, width=3.5cm,angle=270]{.eps}}
    %\hspace*{-5.0em}
  \subfigure[***]{
    \label{fig:cachefib:time} %% label for second subfigure
    \includegraphics[height=5.2cm, width=3.5cm,angle=270]{.eps}}
   % \hspace*{-5.0em}
  \subfigure[***]{
  \label{fig:cachefib:cache-ratio} %% label for third subfigure
    \includegraphics[height=5.2cm, width=3.5cm,angle=270]{.eps}}
    %\hspace*{-5.0em}
  \subfigure[***]{
  \label{fig:cachefib:fib-ratio} %% label for forth subfigure
    \includegraphics[height=5.2cm, width=3.5cm,angle=270]{3.eps}}
   \caption{\small *****.}
  \label{fig:cachefib} %% label for entire figure
\end{figure*}

LaTeX常见错误提示及其原因简析

Latex Error Classes

较为模糊的错误

This is a list of error classes with ambiguos error messages. Here either the errors are have different causes and the message output is same or else the errors have the same root cause but the messages are different.

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常见错误