If you’re trying to move the project from subversion to git, you’ll need to follow the steps here: https://docs.mendix.com/howto/collaboration-requirements-management/on-premises-git-howto#4-7-moving-a-subversion-app-to-git
In order to follow these steps, you will first need an empty GitHub repository to upload your application to. You will also need to create a personal access token to use in place of your password.
Do note however, that as of writing this the git feature is still in beta, and there are still some bugs with using git for version control in Mendix.
Hi Ashar,
Now you have a Git app on your server, you can download it to another directory or one of your team members can download it on their machine
refer this :
https://docs.mendix.com/howto/collaboration-requirements-management/on-premises-git-howto#upload-to-private-git-server
hope this works!!