backward Version compatibility of an Mendix Application

Hi All, I am learning a course of Mendix Rapid Devloper 2018 by creating An application to implement Jimmy's Idea as it is available in the course material.Now I want to syn this app with the desktop modeler version 7.13.1 but i am getting error which is obvious as in Wed the version is 7.17.1. Is there any other way to download it in my desktop modeler older version because i can not switch to latest version as in my company we are using  7.13.1 version.  
1 answers

There is no simple way to downgrade a project, see the following posts for more info: