I was throwing a new CS2007.1 site on my development server on Christmas Eve when I encountered the error below. The SDK compiled clean, the cs_3.0_CreateFullDatabase.sql ran without a glitch and my connectionstring.config was correct, yet I couldn't display the site. Granted, this isn't the most illuminating error, and it is in fact wrong, as the error has nothing to do with a missing SiteUrls.Config. That isn't to say that this is a problem with Community Server, not at all, as it was...