Odd.. let me try to install it, if I get that problem. I'll tell you. My advice is to restart the computer, re-start the setup, and try to install it again. If that doesn't work.. try re-downloading the whole thing again and attempt to install it.
From the looks of that error report though, it seems as though it has a tiny bit of a problem with something in your computer and its acting up. In any case.. I'll download it myself and try it.
