# Beamer poster error

So I'm using beamerthemeI6dv.sty on ShareLaTeX the beamer poster template.

I keep getting this error that \setbeamerfont{footline}{fg=white, size=\normalsize} and \setbeamerfont*{example title}{size=\large,series=\bf,bg=i6colorscheme1,fg=white} have errors, but I'm not seeing what's wrong with them. ShareLaTeX says that fg and bg aren't defined, yet the lines before them which have the same variables aren't marked errors.

Also when I tried to compile, on the poster .tex file it says that \begin{document} was an error, which I also don't understand.

One more question, how can you format the poster so that it's made for a standard tri-fold poster board?

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