Try adding it as a document option instead of a package option, I believe packages use document options they recognize
On Fri, 8 Aug 2008 13:14:46 +0200 "Literatur Hiwi" <[EMAIL PROTECTED]> wrote: > Hello! > > In Lyx I chose a beamer class to be my "document class". > > Now I would like to use the xcolor package, hence I entered the following > into the preamble: > > > > \usepackage[x11names]{xcolor} > > > > Unfortunately I get the following message once I try to compile my file: > > \definecolor > {darkgreen}{cmyk}{0.5, 0, 1, 0.5} > The package xcolor has already been loaded with options: > [] > There has now been an attempt to load it with options > [x11names] > Adding the global options: > ,x11names > to your \documentclass declaration may fix this. > Try typing to proceed. > > > > Is there a possibiliy to add the x11names option to the assumably already > loaded xcolor package? > > Thanks a lot in advance! > > > > Best regards, > > > > TJ > > >