How do I include a local GIF image into beamer using media9 package

From this question, there is a way to include images with a hyperlink using the media9 package included in TeXLive. I am trying to include a GIF image (supported directly by the media9 package) in a beamer slide:

    begin{frame}
        frametitle{Motivation from photography}
            includemedia[
            width=0.3linewidth,keepaspectratio,
            activate=onclick,
            %addresource=config.xml, %embedded configuration
            addresource=../../../../Documents/Horse_galloping.gif, %embedded image file
            %flashvars={xml=config.xml},
            %passcontext %show the player’s context menu
            ]{}{StrobeMediaPlayback.swf}
    end{frame}

I still have some trouble: my tex file compiled successfully but when I opened the pdf file (adobe reader; Foxit doesn’t show the gif image) and clicked on the window, it showed the following error: “we are unable to connect to the content you’ve requested. We apologize for the inconvenience” (TypeError – Error#1009). Some background: I compiled with pdflatex-biber-pdflatex-pdflatex sequence. I called the media9 package by

usepackage{media9}

begin{frame}
includemedia[
    width=.3linewidth,
    height=.3linewidth,
    addresource=../../../../Documents/Horse_galloping.gif,
    transparent,
    activate=pageopen,
    passcontext,
    flashvars={
        source=../../../../Documents/Horse_galloping.gif
        &loop=true
    }
]{}{VPlayer.swf}
end{frame}