I'm not sure what I did to start receiving the error "the OutputPath property is not set for this project" but I suspect it had something to do with me trying to move the EHRDataProviderRole out of the root into a peer folder with the CloudDataProvider (which I just learned is refered to as a Database - I assumed it to be a provider).   This did not go well so I had to recreate the EHRDataProviderRole (back in the root) and then manually attach it to the database again.

The fix actually came from the following link Jamie Laflen MSFT

The only difference was that I had both a Debug and Release configuration.   I also had the following: <OutputPath>bin\Debug\</OutputPath> in both locations.  I changed the "bin" to a period as shown by the two arrows below and then all was well.

Tip: I started by right clicking on the project and selecting "Unload".  I then right clicked on the unloaded project and selected "Edit" as shown in the bottom pane.