Walkthrough the canonical tutorial
There was a problem when try to copy and use the connection string (versioned) from original samples. Issue caused by the new way we should treat (version-independent) connection strings as of Visual Studio 2015 (RC).
Connection string updated to switch from LocalDb to SQL Server.
Before starting the first time run PM> Update-Database
in Package Manager Console.
Solution:
just replace Data Source=(LocalDb)\v11.0;...
with Data Source=(LocalDb)\MSSQLLocalDB;...
.
References: