# Error using \toprule \midrule from Booktabs package [closed]

I am trying to use the package booktabs to make my tables look nicer. However, Latex gives me an error whenever I use \toprule \midrule or \bottomrule. Here is a simple example I created:

\documentclass[10pt,DIV=12,a4paper,numbers=noenddot]{scrreprt}

\usepackage[english]{babel}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}

\usepackage{booktabs} % To thicken table lines

\begin{document}

\begin{table}
\begin{tabular}{ll}
\topline
\midline
Body 1 & Body 2\\
Body 3 & Body 4\\
\bottomline
\end{tabular}
\end{table}

\end{document}

Here is the latex output:

I also browsed to /usr/local/texlive/2011/texmf-dist/tex/latex/ to check if the package is really there. And it is. I cannot see why latex is throwing these errors. Can anyone help?

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As you write in the title, the commands are \toprule, \midrule and \bottomrule, not the \topline, \midline and \bottomline that you're using in the table. –  egreg May 16 '12 at 15:31