The bar was working before. I added the dnn.mvc nuget project and played with that but it screwed up the site so I removed it. I think IIS made the DesktopModules a virtual site or something.
Anyway, I removed the site from IIS and re-added it and it works now but the persona bar never displays. In the browser console I see this error:
"Failed to load resource: the server responded with a status of 404 (Not Found)"
the address associated with that error is: