i'm trying to develop App using visual studio on but when i try to deploy the app this error pop out in visual studio error. i was reading for the last few hours trying to find a solution but no joy following several forums and guidance. first of all does this error is generic ? or something that i need to to setup in my Sharepoint server. P.s note that i'm the sole user of the server as it is installed in dev machine at home running Windows Server 2012.