Document Classes ⇒ xcolor package and beamer

[m.carrara3]

I have a problem; I'm using beamer class for my thesis presentation and I need to change the font's color into a tabular enviroment but it doesn't work.
After \begin{document} I'm using this package

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\usepackage[dvipsnames]{xcolor}

I also post the code I'm using into the document:

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\resizebox{\textwidth}{!}{
\begin{tabular}{|l|c|}
\hline
			\textbf{{\textcolor{red}{Mg}}} & {\textcolor{red}{59.20 $\%$}} \\
			\hline
			\textbf{Al micrometrico} & 36.20 $\%$ \\
			\hline
			\textbf{{\textcolor{ForestGreen}{Al nanometrico}}} & {\textcolor{ForestGreen}{23.04 $\%$}} \\
			\hline
			\textbf{$MgH_2$} & 33.65 $\%$ \\
			\hline
			\textbf{Al nano + $MgH_2$} & 37.15 $\%$ \\
\hline
\end{tabular}}

Any suggestion?

M

[localghost]

I assume that you are compiling with pdflatex hence you are loading the xcolor package with the wrong option.

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\usepackage[svgnames]{xcolor}

This line has to be inserted in the preamble, not in the body of the document. Names of colors stay the same.


Best regards
Thorsten¹

[m.carrara3]

I've already put \usepackage command in the preable;
now I changed the option with the one you gave to me but it still doesn't work out...

Error message says to me:
Package xcolor Error: Undefined color ForestGreen...

Even if I put the right option class for ForestGreen color; I looked also to xcolor guide but it doesn't seem to solve my problem at all...

I tried also to use xcolor command outside tabular but I got the same error...

[localghost]

The main fault is to load the xcolor package again because it is already loaded by the beamer class. This is expressed by an error message (which you should get, too).

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! LaTeX Error: Option clash for package xcolor.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.

To avoid this, put the option svgnames into the option list for the document class. It will be passed to xcolor.

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\documentclass[svgnames,smaller]{beamer}

Delete the line which loads the package and it will work fine.

[m.carrara3]

Cool!!!! It works perfectly!!! Thanks!!!!

[dejan85]

I have the similar problem. I follow instruction from site http://faculty.csuci.edu/jorge.garcia/tex/beamer.htm to install beamer, a test beamer with their template.txt from site. I got the same error

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"! LaTeX Error: Option clash for package xcolor..."

.
template.txt :

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\documentclass[t]{beamer}
\input mybeamersettings

First line I changed to "\documentclass[svgnames,smaller]{beamer}" but I got the same error.
I download some presentation with first lines

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\documentclass[10pt]{beamer}
\mode<presentation> {
  \usetheme{Warsaw}
  \setbeamercovered{transparent}
} 

and the same error appears.
I can't make pdflatex with any correct .tex fail.
Please, can you tell me what may be a problem. I need to fix this very soon for my thesis presentation.

[Stefan Kottwitz]

Hi,

First line I changed to "\documentclass[svgnames,smaller]{beamer}" but I got the same error.

Further you have to remove the line

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\usepackage[...]{xcolor}

in your preamble or mybeamersettings.tex.

If this doesn't help please post a small code example containing enough information.

Stefan

[dejan85]

I want to remove this line, but it doesn't exist, neither in my tex file, nor in the mybeamersettings.tex. In mybeamersettings there are only two lines with usepackage:

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\usepackage[english]{babel}
\usepackage{listings,amsmath,multimedia}

I didn't make the presentation, I'd downloaded the example from http://faculty.csuci.edu/jorge.garcia/tex/beamer.htm. It should be working. You can look at the example. There is no "\usepackage[...]{xcolor}" line.

[Stefan Kottwitz]

The error message shows that the xcolor package was loaded more than once. Have a look at "Option clash for package" in the UK TeX FAQ for more information.
That example worked for me. For further investigation you could post your .log file as attachment here, perhaps we would find the cause there.

Stefan

[dejan85]

I look at my.log file and I find lines that contains xcolor

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C:\texmf\tex\latex\xcolor\xcolor.sty
...
C:\texmf\tex\latex\pgf\xxcolor.sty

After second line there is Option clash... Probably, latex load xcolor package more than once automatically, so I really don't know how to solve problem. I upload my .log file.