I tried doing:
imports:
\usepackage{color}
\usepackage{epsfig}
figure code:
\begin{figure}[htbp]
\begin{center}
\psfig{file=filename.latex}
\caption{caption}
\end{center}
\end{figure}
It says:
! LaTeX Error: Cannot determine size of graphic in filename.latex (no BoundingBox).
ideas?
thanks