Undefined control sequence with pgfgantt package when creating Gantt chart

Question

I'm attempting to make a Gantt chart in my LaTeX document with the pgfgantt package. However, when I try to compile, it give me undefined control sequence at the first \gantttitle between the {7} and \\:

\begin{ganttchart}{7}
  \gantttitle{2012}{7} \\ 
  \gantttitlelist{1,...,7}{1} \\
  \ganttgroup{Planning}{1}{1} \\
  \ganttbar{Write Wiki page}{1}{1} \\
  \ganttmilestone{Wiki page complete}{1} \\
  \ganttgroup{Coding}{2}{6} \\
  \ganttbar{Code new monitoring into the proxy}{2}{3} \\
  \ganttbar{Code new database changes}{4}{5} \\
  \ganttbar{Code new notifications{5}{6} \\
  \ganttmilestone{All new functionality complete}{6} \\
  \ganttgroup{Testing and Deployment}{6}{7} \\
  \ganttbar{Write tests}{6}{7} \\
  \ganttbar{Deploy system}{7}{7} \\
  \ganttmilestone{Complete system up and running}{7}
\end{ganttchart}

If I comment out the \gantttitle, it just gives me an error on \ganttitlelist. I did include the \usepackage{pgfgantt} at the beginning.

Any ideas?

Answer 1

You need to wrap the ganttchart environment inside a tikzpicture environment:

\documentclass{article}
\usepackage{pgfgantt}% http://ctan.org/pkg/pgfgantt
\begin{document}
\begin{tikzpicture}
  \begin{ganttchart}{7}
    \gantttitle{2012}{7} \\ 
    \gantttitlelist{1,...,7}{1} \\
    \ganttgroup{Planning}{1}{1} \\
    \ganttbar{Write Wiki page}{1}{1} \\
    \ganttmilestone{Wiki page complete}{1} \\
    \ganttgroup{Coding}{2}{6} \\
    \ganttbar{Code new monitoring into the proxy}{2}{3} \\
    \ganttbar{Code new database changes}{4}{5} \\
    \ganttbar{Code new notifications}{5}{6} \\
    \ganttmilestone{All new functionality complete}{6} \\
    \ganttgroup{Testing and Deployment}{6}{7} \\
    \ganttbar{Write tests}{6}{7} \\
    \ganttbar{Deploy system}{7}{7} \\
    \ganttmilestone{Complete system up and running}{7}
  \end{ganttchart}
\end{tikzpicture}
\end{document}

Edit: v2.1 (or newer) of pgfgantt does not require embedding inside a tikzpicture environment.