[Tex/LaTex] \maketitle control sequence error

titles

I'm preparing a SIGCHI publication and trying to use their document class file (posted here), but whenever I try to compile my document I get the following error:

./test.tex:18: Undefined control sequence. 
<argument> ... single spaced. \newline \textcolor 
{red}{Every submission wil...
l.18 \maketitle

I've provided a dummy document below. I've put \maketitle in the proper location and included all the necessary arguments (title and author), so I'm not sure what's going on.

\documentclass{sigchi}
\usepackage{times}
\pagenumbering{arabic}  % Arabic page numbers for submission.  Remove this line to eliminate page numbers for the camera ready copy
\title{The Title}
\numberofauthors{2}
\author{
   \alignauthor Author 1
     \affaddr{Affiliation}\\
     \affaddr{Affiliation}\\
    \email{author@a.com}
   \alignauthor Author 2
    \affaddr{Affiliation}\\
    \affaddr{Affiliation}\\
    \email{author2@b.com}
}

\begin{document}
\maketitle
\abstract{This is the abstract}
\keywords{Put author keywords here}
\classification{The ACM Classification keywords here.}

\section{Introduction}
blah
\end{document}

Best Answer

As David pointed out, the style file requires the color package. Once I added \usepackage{color} to the preamble, \maketitle worked fine.

Related Solutions

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\degree{Master of Universe}

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[Tex/LaTex] \maketitle error – control sequence not defined

\maketitle is redefined from usual \maketitle given by the loaded class article, in the very end the \@maketitle macro redefined by courseoutline.cls -- \@maketitle requires much information to be set with various commands.

Here the compilation fails because \@taemail and \@taphone are not defined yet, the same a standard class would fail because \title has not been used.

% This is an example temple for the courseoutline.cls by Norm Gall
%
% I have used every new macro and environment.
%
% If you have tutorials, add ta to the options field in \documentclass
%
% Please read the .cls for any further explanations.
%
\documentclass[11pt]{courseoutline}
\usepackage{graphicx}
\usepackage{amssymb}
\usepackage{color}
%
\university{No Name University}
\department{blah blah}
%
\coursename{Water and Landscapes}
\coursenumber{blah blah}
\coursesection{(sec. 101)}
\coursesession{Fall 2017-18}
\coursetime{Mo--We--Fr 10.00--11.00hrs}
\courselocation{blah blah}
\coursewebpage{blah blah}
%
\instructor{blah blah}
\instructoroffice{rm. 127, Geography}
\instructorofficehours{We--Fr 11.00--12.00hrs}
\instructorphone{(604) 822--9105}
\instructoremail{blah blah}
%
\ta{blah blah}
\taoffice{blah blah}
\taofficehours{available during scheduled labs}
\taemail{dontusestrangetemplate@classes.com}
\taphone{Foo}
%
\tutorialtime{
    \begin{tabular}[t]{l}
        (D) Tu 10.00--11.00hrs\\
        (E) Tu 13.00--14.00hrs\\
        (F) Tu 14.00--15.00hrs\\
        (G) We 12.00--13.00hrs\\
        (H) We 13.00--14.00hrs\\
        (I) Th 11.00--12.00hrs\\
        (J) Th 12.00--13.00hrs
    \end{tabular}
}
\tutoriallocation{
    \begin{tabular}[t]{r}
        rm 130\\
        rm 130\\
        rm 130\\
        rm 130\\
        rm 130\\
        rm 130\\
        rm 130\\
    \end{tabular}
}
\pagestyle{myheadings}
\markright{Water and Landscapes}
\begin{document}
\maketitle
\begin{textbooks}
    \begin{itemize}

        \item Bierman and Montgomery, 2013. \textit{Key Concepts in Geomorphology} (ISBN-10: 1-4292-3860-7). MacMillan.
        %\newline 
        \texttt{PLEASE NOTE: this textbook is MANDATORY, and is not equivalent to any previously used textbooks for this course}.

    \end{itemize}
\end{textbooks}
\end{document}

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