I recently had troubles Importing a Database from a SQL Server Database Project in VS 2015. Just hoping this helps some folks. I will add more pictures when my rep is higher.
Right click on the Project and clicking View in Object Explorer.
Add and connect to your database next, if needed. Right click on the database you are wanting to import and click Create New Project.
Change settings if needed. Then Click Start
Once you open Visual Studio – go to the menu: File -> New -> Project. A new window will be opened and then find the project type: SQL Server Database Project. Having an empty database project you can either create new objects and create a new database from scratch or import existing ones. Please follow the below steps: