VS1723: Modeling projects based on this project template must be saved when you create them. Perform either of the following ...

VS1723: Modeling projects based on this project template must be saved when you create them. Perform either of the following tasks and then create the project: 
- On the Tools menu, click Options. Next, click Projects and Solutions, click General, and then select the "Save new projects when created" check box.
- In the .vstemplate file for the project template, edit the  section to specify true.