When I use the following preamble:
\documentclass{beamer}
\mode<presentation>
\usetheme{Berkeley}
\usecolortheme{default}
\usefonttheme{default}
\setbeamertemplate{navigation symbols}{}
\setbeamertemplate{caption}[numbered]
\usepackage{ragged2e}
\usepackage[english]{babel}
\usepackage[utf8x]{inputenc}
\usepackage{hyperref}
\usepackage[colorlinks]{hyperref}
\hypersetup{citecolor=DeepPink4}
\hypersetup{linkcolor=DarkRed}
\hypersetup{urlcolor=DarkBlue}
\usepackage{cleveref}
\title[something]{something}
\author{someone}
\date{someday}
\begin{document}
\begin{frame}{}
\titlepage
\end{frame}
\begin{frame}{something}
\justifying
\href{http://google.com}{Google}
\end{frame}
\end{document}
I receive the error:
`option clash for package hyperref. \hypersetup`
However, when I suppress \usepackage[colorlinks]{hyperref}
it works, but without the colour.
Any ideas?