Pega Robotic Automation Importer is (at a really basic-level) a way to re-use existing RPA bots in other case flows and is not required or involved in the deployment process. Your issue is likely a mis-configuration. When you setup server connectivity in Studio, were you able to successfully test the connection? When you installed Studio, did you specific the correct package server? If not, you'll need to edit the StudioConfig.xml in your %AppData% folder (it will be in the OpenSpan folder in earlier version or in the Pegasystems folder in 19.1) and restart Studio. From your message it seems like your Pega server is incorrec, so I would assume when you test connectivity, it will fail there.