I currently have a provider hosted app that has been built around the SharePoint Online platform and therefore uses version 16 DLL's for SharePoint. I have a need to deploy this app to a SharePoint 2013 Foundation (on-premises) installation but the version of the DDL's are being stated as the wrong version by Visual Studio on the deployment (as SharePoint 2013 Foundation required version 15 of the DLL's).
Is it possible to use the SharePoint Online DLL's with an on-premises version of SharePoint 2013 (i.e. in some kind of backwards compatibility option) or is there a quick/efficient method of converting the app to work on-premises with SharePoint 2013 without re-writing the app from scratch?
Any help or suggestions available will be much appreciated.