Visual Studio 2022 - implementing Entity Framework Core Migrations and Database Initialization in a .NET 7 Web API
I'm trying to configure I'm trying to figure out I'm dealing with I'm working on a project and hit a roadblock..... I'm currently working with an scenario with Entity Framework Core migrations in my .NET 7 Web API project while using Visual Studio 2022. After setting up my DbContext and creating a migration, I'm getting an behavior when trying to initialize the database using the command `Update-Database`. The behavior message I receive is: `System.InvalidOperationException: The connection string 'DefaultConnection' is not defined in this context.` Here's a snippet of my `appsettings.json` where I define the connection string: ```json { "ConnectionStrings": { "DefaultConnection": "Server=(localdb)\\mssqllocaldb;Database=MyDatabase;Trusted_Connection=True;" } } ``` I've verified that the connection string is configured correctly and that I have the necessary NuGet packages installed, including `Microsoft.EntityFrameworkCore.SqlServer` and `Microsoft.EntityFrameworkCore.Tools`. In my `Startup.cs` file, I've also configured the database context like this: ```csharp services.AddDbContext<MyDbContext>(options => options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection"))); ``` I tried running the migrations from both the Package Manager Console and the command line using `dotnet ef database update`, but the same behavior continues. I also confirmed that the `MyDbContext` class is correctly set up and includes the necessary `DbSet<T>` properties. Additionally, I've checked that the local database is running, and I've created the database manually to see if that resolves the scenario, but it doesn't seem to help. Is there something I'm missing in terms of configuration or initialization? Any insights would be greatly appreciated! Has anyone else encountered this? This issue appeared after updating to C# 3.10. The stack includes C# and several other technologies. This is happening in both development and production on Windows 11. Any suggestions would be helpful.