### Not in outer par mode

The error:

>     ! LaTeX Error: Not in outer par mode.

comes when some “main” document feature is shut up somewhere it doesn’t like.

The commonest occurrence is when the user wants a figure somewhere inside a table:

>     \begin{tabular}{|l|}
>       \hline
>       \begin{figure}
>       \includegraphics{foo}
>       \end{figure}
>       \hline
>     \end{tabular}

a construction that was supposed to put a frame around the diagram, but doesn’t work, any more than:

>     \framebox{\begin{figure}
>       \includegraphics{foo}
>       \end{figure}%
>     }

The problem is, that the `tabular` environment, and the `\``framebox` command restrain the `figure` environment from its natural métier, which is to float around the document.

The solution is simply not to use the `figure` environment here:

>     \begin{tabular}{|l|}
>       \hline
>       \includegraphics{foo}
>       \hline
>     \end{tabular}

What was the float for? — as written in the first two examples, it serves no useful purpose; but perhaps you actually wanted a diagram and its caption framed, in a float.

It’s simple to achieve this — just reverse the order of the environments (or of the `figure` environment and the command):

>     \begin{figure}
>       \begin{tabular}{|l|}
>         \hline
>         \includegraphics{foo}
>         \caption{A foo}
>         \hline
>       \end{tabular}
>     \end{figure}

The same goes for `table` environments (or any other sort of float you’ve defined for yourself) inside tabulars or box commands; you must get the float environment out from inside, one way or another.

This question on the Web: http://www.tex.ac.uk/cgi-bin/texfaq2html?label=ouparmd