I had to write an article in a class derived (apparently) from SIG-ALTERNATE.CLS/ACM_PROC_ARTICLE-SP.CLS. Then, I wanted to build a version without images, so I wanted to use the [demo] option of {graphicx} package. Interestingly, as soon as I tried that, Latex 'crashed' with 'option clash' error.
I think I managed to boil the problem down on this MWE:
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Code, edit and compile here:
% test.tex\documentclass[a4paper,12pt]{article}% with just the below four lines as preamble, all is fine:% \usepackage[demo]{graphicx}% \usepackage{url}% \usepackage[breaklinks]{hyperref}% \usepackage{breakurl}% with this preamble - getting an 'option clash' error% when using [demo]{graphicx} (but compiles without demo option)% (copies SIG-ALTERNATE.CLS/ACM_PROC_ARTICLE-SP.CLS)\usepackage{epsfig}\usepackage{amssymb}\usepackage{amsmath}\usepackage{amsfonts}\usepackage[demo]{graphicx}\usepackage{url}\usepackage[breaklinks]{hyperref}\usepackage{breakurl}\begin{document}\includegraphics[width=0.5\linewidth]{demo}\end{document}
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! LaTeX Error: Option clash for package graphicx.See the LaTeX manual or LaTeX Companion for explanation.Type H <return> for immediate help....l.18 \usepackage{url}? XNo pages of output.Transcript written on test.log.
Anyways - does anyone know what is the problem here, and how could I use the [demo] option of {graphicx} without it clashing with {url}, within this kind of a class environment??
Thanks in advance for any answers,
Cheers!