Merge Projects
Open the Visual Studio
Select the project > right-click > get latest version
We need to do that for both projects.Go to your Target Project in Visual Studio > right-click > New Folder
And add a name to the new folder.
Go to Windows Explorer and find your project.
Open your Source Project and copy (CTRL+C) all folders you need
Paste all folders and files into your new folder in your Target Project
Return to Visual Studio > select the folder created before > add items to a folder
Select all folders > Next > Finish
At the end, select the folder created > right-click > Check In Pending Changes > Add a comment and click on Check In