I am following the MVC Music Store tutorial and it says I can create the App_Data folder by clicking on Project -> Add ASP.Net folder -> App_Data.
However when I do that I see that all the standard ASP.Net folders are disabled and cannot be selected. Why is that and how do I fix it?
I came across this problem too. You have to make sure the project is selected in the Solution Explorer and not just some file or folder within the project. If the project is selected, your Add ASP.NET folder options will become enabled. Alternatively, right click on the project in the tree and go to Add -> Add ASP.NET Folder. That will make sure the project is indeed selected.