Cannot consume scoped service 'MyDbContext' from singleton 'Microsoft.AspNetCore.Hosting.Internal.HostedServiceExecutor'

Question

I\'ve build a background task in my ASP.NET Core 2.1 following this tutorial: https://docs.microsoft.com/en-us/aspnet/core/fundamentals/host/hosted-services?view=aspnetcore-

Answer 1

You still need to register MyDbContext with the service provider. Usually this is done like so:

services.AddDbContext(options => {
    // Your options here, usually:
    options.UseSqlServer("YourConnectionStringHere");
});

If you also posted your Program.cs and Startup.cs files, it may shed some more light on things, as I was able to quickly setup a test project implementing the code and was unable to reproduce your issue.