

Unable to open the physical file "C:\Program Files\Microsoft SQL Server\MSSQL13.SQLEXPRESS\MSSQL\DATA\MyDatabase.mdf". The issue now is that when I go through the Entity Data Model Wizard (existing database) and go to establish a New Connection, select "Microsoft SQL Server Database File (SqlClient)" and browse to my database - the Test Connection generates the error: I've searched MSDN and this site for days but haven't found a way to solve this. I would like to connect it as a data source within Entity Framework in my solution (which is in c#). I keep running into issues just trying to make a connection from my c# program in Visual Studio 2017 Express to a small local database with one table I created in Sql Server Express.
