我正在使用 excel2latex 创建表格，但是当我使用 beamer 创建演示文件时，出现错误。我的代码是：
\usepackage{lmodern}
\usepackage[english]{babel}
\usepackage{mathrsfs}
\usepackage[latin1]{inputenc}
\usepackage{graphics}
\usepackage{graphicx, color}
\usepackage{subfigure}
\usepackage{graphicx}% http://ctan.org/pkg/graphicx
\usepackage{booktabs}
\begin{frame}
\frametitle{}
\begin{table}[htbp]
\centering
\caption{Indices, Parameters and Decision Variables}
\begin{tabular}{llc}
\toprule
& & Explanation \\
\midrule
\multirow{4}[0]{*}{Indices} & i, j, {i'},{j'} & graph nodes \\
\multicolumn{1}{c}{} & k, {k'} & Convoys\\
\multicolumn{1}{c}{} & v & Convoys vehicles \\
\multicolumn{1}{c}{} & ${v_k}$ & Index for the last vehicles in the convoy k \\
\hline
\multicolumn{1}{c}{\multirow{14}[0]{*}{Parameters}} & N & Total number of convoys or OD pairs. \\
\multicolumn{1}{c}{} & M & Total number nodes on the network (intersections)\\
\multicolumn{1}{c}{} & $l_{i,j}$ & length of the arc (i,j) \\
\multicolumn{1}{c}{} & $l_{k}^v$ & The length of the vehicle v in convoy k \\
\multicolumn{1}{c}{} & $O_{ k}, D_{k}$ & The Origin and Destination points of convoy k\\
\multicolumn{1}{c}{} & $r_{ k}$ & The arrival time of convoy k at the Origin. \\
\multicolumn{1}{c}{} & $ f_{k}$ & The deadline for convoy k to reach its destination. \\
\multicolumn{1}{c}{} & $ S_{i,j}^k$ & The deadline for convoy k to reach its destination. \\
\multicolumn{1}{c}{} & $w_{ i}$ & The length of the convoy i. \\
\multicolumn{1}{c}{} & $F_{i,j}$ & The traffic volume on edge (i,j). \\
\multicolumn{1}{c}{} & $A_{E\times E}$ & The Tabu List matrix, is one where corresponding edges should \\
\multicolumn{1}{c}{} & ¬ be occupied at the same time by more than one convoy. \\
\multicolumn{1}{c}{} & $l_{k}$ & The total length of convoy k. \\
\multicolumn{1}{c}{} & $\lambda_k$ & The waiting time interval at the origin for convoy k. \\
\hline
\multicolumn{1}{c}{\multirow{7}[0]{*}{
}} & $X_{ i,j}^k$ & $ \left\{ \begin{array}{rcl}
1 & \mbox{ If convoy k will pass through link (i,j) } & \\
0 & \mbox{Otherwise} &
\end{array}\right. $ \\
\multicolumn{1}{c}{} & $Y_{k,k'}^i$ & $ \left\{ \begin{array}{rcl}
1 & \mbox{ If convoy k will pass through link (i,j) } & \\
0 & \mbox{Otherwise} &
\end{array}\right. $ \\
\multicolumn{1}{c}{Decision} & $Z_{i,j}^{k}$ & The time interval which convoy k is on the edge (i,j) \\
\multicolumn{1}{c}{Varialbes} & $t_{i}^{k,v}$ & The time when $v^th$ vehicle of convoy k arrives at node i \\
\multicolumn{1}{c}{} & $Q_{i,j,i',j}^{k,k'}$ & $ \left\{ \begin{array}{rcl}
1 & \mbox{ if Convoy k will pass the edge (i,j) before convoy {k'} pass edge (i',j') } & \\
0 & \mbox{Otherwise} &
\end{array}\right. $ \\
\multicolumn{1}{c}{} & $t_{i}^{k}$ & The time when convoy k will arrive to node i \\
\multicolumn{1}{c}{} & $B_k$ & The integer waiting component of convoy k \\
\bottomrule
\end{tabular}%
\label{tab:addlabel}%
\end{table}%
\end{frame}
我收到的错误是：
! 未定义控制序列。\multirow
l.161 \end{框架}
？
答案1
只需包含多行包就可以工作！
\usepackage{multirow}