I'm trying to add some images, but When i compile it, an error is shown, and in the PDF the images are not showed.
Code I have used:
\begin{figure}[!h] % h-here, t-top, b-bottom
\begin{center}
\includegraphics[width=0.9\textwidth]{figs/Captura1.jpg}
\caption{Figure 1: Screen-shot of a Wireless Follow-me-MP3 Controller}
\end{center}
\end{figure}
The libraries:
\documentclass{llncs}
\usepackage{llncsdoc} % the original package lncs
\usepackage[dvips]{graphicx} % for images
And the error that returns:

Thanks for all
[dvips]option forgraphicx. And then make sure you are using an engione that supports JPG, e.g.pdflatex. – daleif Mar 14 '14 at 14:36Thanks!
– Shudy Mar 14 '14 at 14:38[h!]which is likely to take the figure to the end of the document (latex most likely gives a warning and changes it to !htbut!htp` would be better – David Carlisle Mar 14 '14 at 14:51