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Tag: dependency-injection

3 posts

2026-05-10 errors csharp dotnet

Fix: Cannot consume scoped service 'X' from singleton 'Y'

ASP.NET Core's scope validation throws this when a singleton would capture a scoped dependency for the rest of the process. Make the consumer scoped, or take IServiceScopeFactory and create a scope on demand.

2026-05-10 errors csharp dotnet

Fix: Unable to resolve service for type 'X' while attempting to activate 'Y'

ASP.NET Core throws this when a constructor asks for a type that was never registered, was registered on the wrong container, or was added after the host was built. Three concrete fixes cover almost every case.

2026-04-23 dotnet-11 ef-core-11 testing

EF Core 11 Preview 3 Adds RemoveDbContext for Clean Test Provider Swaps

EF Core 11 Preview 3 introduces RemoveDbContext, RemoveExtension, and a parameterless AddPooledDbContextFactory overload, removing the boilerplate around swapping providers in tests and centralizing pooled factory configuration.