! LaTeX Error: Option clash for package color. in Miktex

! LaTeX Error: Option clash for package color. in Miktex

I'm so new to Latex.Using Miktex I have following problem with its
portable version . I write down here the code and the final error :
\documentclass[cover]{isas-seminar}
\usepackage{subfigure}
\usepackage{booktabs}
\usepackage[ngerman]{babel}
\usepackage[utf8]{inputenc}
\usepackage[babel]{csquotes}
\usepackage{listings}
\lstset{language=matlab}
\usepackage{graphicx}
\usepackage{amssymb}
\eventtype{Praktikum}
\title{Auswertung von Versuchsdaten aus
Operationen am schlagenden Herzen}
\author{X}
\begin{document}
\maketitle
\begin{abstract}
%Hier eine kommt die Zusammenfassung
\item Korrelieren der Daten.
\end{enumerate}
\end{abstract}
\clearpage
\tableofcontents
\cleardoublepage
\subsection{Drucksensor}
Drucksensor misst den Druck von Herz.
\subsection{EKG}
Das Elektrokardiogramm(EKG) ist die Aufzeichnung der Summe
der elektrischen Aktivitäten aller Herzmuskelfasern.
\end{thebibliography}
\end{document}
And the result is :
This is pdfTeX, Version 3.1415926-2.4-1.40.13 (MiKTeX 2.9)
entering extended mode
(G:/localtexmf/tex/latex/asymptote/vorlage.pdf.tex
LaTeX2e <2011/06/27>
Babel <v3.8m> and hyphenation patterns for english, afrikaans,
ancientgreek, ar
abic, armenian, assamese, basque, bengali, bokmal, bulgarian, catalan,
coptic,
croatian, czech, danish, dutch, esperanto, estonian, farsi, finnish,
french, ga
lician, german, german-x-2012-05-30, greek, gujarati, hindi, hungarian,
iceland
ic, indonesian, interlingua, irish, italian, kannada, kurmanji, latin,
latvian,
lithuanian, malayalam, marathi, mongolian, mongolianlmc, monogreek,
ngerman, n
german-x-2012-05-30, nynorsk, oriya, panjabi, pinyin, polish, portuguese,
roman
ian, russian, sanskrit, serbian, slovak, slovenian, spanish, swedish,
swissgerm
an, tamil, telugu, turkish, turkmen, ukenglish, ukrainian, uppersorbian,
usengl
ishmax, welsh, loaded.
(G:\localtexmf\tex\latex\asymptote\isas-seminar.cls
Document Class: isas-seminar 2005/04/13 The ISAS seminar class
(G:\Softwares\Latex\tex\latex\eso-pic\eso-pic.sty
(G:\Softwares\Latex\tex\generic\oberdiek\atbegshi.sty
(G:\Softwares\Latex\tex\generic\oberdiek\infwarerr.sty)
(G:\Softwares\Latex\tex\generic\oberdiek\ltxcmds.sty)
(G:\Softwares\Latex\tex\generic\oberdiek\ifpdf.sty))
(G:\Softwares\Latex\tex\latex\graphics\keyval.sty)
(G:\Softwares\Latex\tex\latex\xcolor\xcolor.sty
(G:\Softwares\Latex\tex\latex\00miktex\color.cfg)
(G:\Softwares\Latex\tex\latex\pdftex-def\pdftex.def)))
(G:\Softwares\Latex\tex\latex\type1cm\type1cm.sty)
(G:\Softwares\Latex\tex\latex\amsmath\amsmath.sty
For additional information on amsmath, use the `?' option.
(G:\Softwares\Latex\tex\latex\amsmath\amstext.sty
(G:\Softwares\Latex\tex\latex\amsmath\amsgen.sty))
(G:\Softwares\Latex\tex\latex\amsmath\amsbsy.sty)
(G:\Softwares\Latex\tex\latex\amsmath\amsopn.sty))
(G:\Softwares\Latex\tex\latex\base\article.cls
Document Class: article 2007/10/19 v1.4h Standard LaTeX document class
(G:\Softwares\Latex\tex\latex\base\size10.clo))
(G:\Softwares\Latex\tex\latex\geometry\geometry.sty
(G:\Softwares\Latex\tex\generic\oberdiek\ifvtex.sty)
(G:\Softwares\Latex\tex\generic\ifxetex\ifxetex.sty)
(G:\Softwares\Latex\tex\latex\geometry\geometry.cfg))
(G:\Softwares\Latex\tex\latex\german\ngerman.sty v2.5e 1998-07-08)
(G:\Softwares\Latex\tex\latex\fancyhdr\fancyhdr.sty)
(G:\Softwares\Latex\tex\latex\hyperref\hyperref.sty
(G:\Softwares\Latex\tex\generic\oberdiek\hobsub-hyperref.sty
(G:\Softwares\Latex\tex\generic\oberdiek\hobsub-generic.sty))
(G:\Softwares\Latex\tex\latex\oberdiek\auxhook.sty)
(G:\Softwares\Latex\tex\latex\oberdiek\kvoptions.sty)
(G:\Softwares\Latex\tex\latex\hyperref\pd1enc.def)
(G:\Softwares\Latex\tex\latex\00miktex\hyperref.cfg)
(G:\Softwares\Latex\tex\latex\ltxmisc\url.sty))
Package hyperref Message: Driver: hpdftex.
(G:\Softwares\Latex\tex\latex\hyperref\hpdftex.def
(G:\Softwares\Latex\tex\latex\oberdiek\rerunfilecheck.sty))
(G:\Softwares\Latex\tex\latex\graphics\graphicx.sty
(G:\Softwares\Latex\tex\latex\graphics\graphics.sty
(G:\Softwares\Latex\tex\latex\graphics\trig.sty)
(G:\Softwares\Latex\tex\latex\00miktex\graphics.cfg)))
! LaTeX Error: Option clash for package color.
See the LaTeX manual or LaTeX Companion for explanation.
Type H <return> for immediate help.
...
l.114 \RequirePackage
{float}
?