Exception when attempting to use keyed dependencies

A

Andrew•12/18/23, 8:11 PM

This can happen if you have a service that does assembly scanning, similar to https://github.com/jbogard/MediatR/issues/942

GitHub

System.InvalidOperationException with KeyedServices in .NET 8 · Iss...

Hi, I'm currently playing with the new .NET 8 Preview 7 that came out a few days ago. When I add a KeyedService to the DI container, it causes a System.InvalidOperationException thrown by Media...

AAndrew This can happen if you have a service that does assembly scanning, similar to ht...

N

NoriegaOP•12/18/23, 9:16 PM

Well my exception has nothing to do with mediatr, but do you mean if Im using reflection while registering dependencies?

A

Andrew•12/18/23, 9:17 PM

If you, or someone else is, then potentially

N

NoriegaOP•12/18/23, 9:17 PM

got it

N

NoriegaOP•12/18/23, 9:18 PM

do you have any ideas for registering 2 dependencies with the same interface, other than directly registering the implemented class?

A

Andrew•12/18/23, 9:18 PM

full stack would help a little more

A

Andrew•12/18/23, 9:18 PM

keyed should work, but it really depends on a lot of things. The stack at least can help identify the source of the issue

N

NoriegaOP•12/18/23, 9:22 PM

System.InvalidOperationException: This service descriptor is keyed. Your service provider may not support keyed services.                                                                     at Microsoft.Extensions.DependencyInjection.ServiceDescriptor.ThrowKeyedDescriptor()
at Microsoft.Extensions.DependencyInjection.ServiceDescriptor.get_ImplementationType()
at Microsoft.Extensions.DependencyInjection.InternalServiceCollectionExtensions.<>c__19`1.<TryAddParameterExpressionBuilder>b__19_0(ServiceDescriptor t)
at System.Linq.Enumerable.All[TSource](IEnumerable`1 source, Func`2 predicate)
at Microsoft.Extensions.DependencyInjection.InternalServiceCollectionExtensions.TryAddParameterExpressionBuilder[T](IServiceCollection services)
at Microsoft.Extensions.DependencyInjection.InternalServiceCollectionExtensions.TryAddDataLoaderParameterExpressionBuilder(IServiceCollection services)
at Microsoft.Extensions.DependencyInjection.RequestExecutorServiceCollectionExtensions.AddGraphQLCore(IServiceCollection services)
at Microsoft.Extensions.DependencyInjection.HotChocolateAspNetCoreServiceCollectionExtensions.AddGraphQLServerCore(IServiceCollection services, Int32 maxAllowedRequestSize)
at Microsoft.Extensions.DependencyInjection.HotChocolateAspNetCoreServiceCollectionExtensions.AddGraphQLServer(IServiceCollection services, String schemaName, Int32 maxAllowedRequestSize)
at Scathach.Infrastructure.Extensions.ServiceCollectionExtensions.AddScathachApiServer(IServiceCollection serviceCollection) in C:\Users\crobati\OneDrive\Scathach\src\Scathach.Infrastructure\Extensions\ServiceCollectionExtensions.cs:line 16
at Scathach.Program.ConfigureServices(WebApplicationBuilder webApplicationBuilder) in C:\Users\crobati\OneDrive\Scathach\src\Scathach\Program.cs:line 160
at Scathach.Program.Main(String[] args) in C:\Users\crobati\OneDrive\Scathach\src\Scathach\Program.cs:line 76
at Scathach.Program.<Main>(String[] args)

System.InvalidOperationException: This service descriptor is keyed. Your service provider may not support keyed services.                                                                     at Microsoft.Extensions.DependencyInjection.ServiceDescriptor.ThrowKeyedDescriptor()
at Microsoft.Extensions.DependencyInjection.ServiceDescriptor.get_ImplementationType()
at Microsoft.Extensions.DependencyInjection.InternalServiceCollectionExtensions.<>c__19`1.<TryAddParameterExpressionBuilder>b__19_0(ServiceDescriptor t)
at System.Linq.Enumerable.All[TSource](IEnumerable`1 source, Func`2 predicate)
at Microsoft.Extensions.DependencyInjection.InternalServiceCollectionExtensions.TryAddParameterExpressionBuilder[T](IServiceCollection services)
at Microsoft.Extensions.DependencyInjection.InternalServiceCollectionExtensions.TryAddDataLoaderParameterExpressionBuilder(IServiceCollection services)
at Microsoft.Extensions.DependencyInjection.RequestExecutorServiceCollectionExtensions.AddGraphQLCore(IServiceCollection services)
at Microsoft.Extensions.DependencyInjection.HotChocolateAspNetCoreServiceCollectionExtensions.AddGraphQLServerCore(IServiceCollection services, Int32 maxAllowedRequestSize)
at Microsoft.Extensions.DependencyInjection.HotChocolateAspNetCoreServiceCollectionExtensions.AddGraphQLServer(IServiceCollection services, String schemaName, Int32 maxAllowedRequestSize)
at Scathach.Infrastructure.Extensions.ServiceCollectionExtensions.AddScathachApiServer(IServiceCollection serviceCollection) in C:\Users\crobati\OneDrive\Scathach\src\Scathach.Infrastructure\Extensions\ServiceCollectionExtensions.cs:line 16
at Scathach.Program.ConfigureServices(WebApplicationBuilder webApplicationBuilder) in C:\Users\crobati\OneDrive\Scathach\src\Scathach\Program.cs:line 160
at Scathach.Program.Main(String[] args) in C:\Users\crobati\OneDrive\Scathach\src\Scathach\Program.cs:line 76
at Scathach.Program.<Main>(String[] args)

System.InvalidOperationException: This service descriptor is keyed. Your service provider may not support keyed services.                                                                     at Microsoft.Extensions.DependencyInjection.ServiceDescriptor.ThrowKeyedDescriptor()
at Microsoft.Extensions.DependencyInjection.ServiceDescriptor.get_ImplementationType()
at Microsoft.Extensions.DependencyInjection.InternalServiceCollectionExtensions.<>c__19`1.<TryAddParameterExpressionBuilder>b__19_0(ServiceDescriptor t)
at System.Linq.Enumerable.All[TSource](IEnumerable`1 source, Func`2 predicate)
at Microsoft.Extensions.DependencyInjection.InternalServiceCollectionExtensions.TryAddParameterExpressionBuilder[T](IServiceCollection services)
at Microsoft.Extensions.DependencyInjection.InternalServiceCollectionExtensions.TryAddDataLoaderParameterExpressionBuilder(IServiceCollection services)
at Microsoft.Extensions.DependencyInjection.RequestExecutorServiceCollectionExtensions.AddGraphQLCore(IServiceCollection services)
at Microsoft.Extensions.DependencyInjection.HotChocolateAspNetCoreServiceCollectionExtensions.AddGraphQLServerCore(IServiceCollection services, Int32 maxAllowedRequestSize)
at Microsoft.Extensions.DependencyInjection.HotChocolateAspNetCoreServiceCollectionExtensions.AddGraphQLServer(IServiceCollection services, String schemaName, Int32 maxAllowedRequestSize)
at Scathach.Infrastructure.Extensions.ServiceCollectionExtensions.AddScathachApiServer(IServiceCollection serviceCollection) in C:\Users\crobati\OneDrive\Scathach\src\Scathach.Infrastructure\Extensions\ServiceCollectionExtensions.cs:line 16
at Scathach.Program.ConfigureServices(WebApplicationBuilder webApplicationBuilder) in C:\Users\crobati\OneDrive\Scathach\src\Scathach\Program.cs:line 160
at Scathach.Program.Main(String[] args) in C:\Users\crobati\OneDrive\Scathach\src\Scathach\Program.cs:line 76
at Scathach.Program.<Main>(String[] args)

System.InvalidOperationException: This service descriptor is keyed. Your service provider may not support keyed services.                                                                     at Microsoft.Extensions.DependencyInjection.ServiceDescriptor.ThrowKeyedDescriptor()
at Microsoft.Extensions.DependencyInjection.ServiceDescriptor.get_ImplementationType()
at Microsoft.Extensions.DependencyInjection.InternalServiceCollectionExtensions.<>c__19`1.<TryAddParameterExpressionBuilder>b__19_0(ServiceDescriptor t)
at System.Linq.Enumerable.All[TSource](IEnumerable`1 source, Func`2 predicate)
at Microsoft.Extensions.DependencyInjection.InternalServiceCollectionExtensions.TryAddParameterExpressionBuilder[T](IServiceCollection services)
at Microsoft.Extensions.DependencyInjection.InternalServiceCollectionExtensions.TryAddDataLoaderParameterExpressionBuilder(IServiceCollection services)
at Microsoft.Extensions.DependencyInjection.RequestExecutorServiceCollectionExtensions.AddGraphQLCore(IServiceCollection services)
at Microsoft.Extensions.DependencyInjection.HotChocolateAspNetCoreServiceCollectionExtensions.AddGraphQLServerCore(IServiceCollection services, Int32 maxAllowedRequestSize)
at Microsoft.Extensions.DependencyInjection.HotChocolateAspNetCoreServiceCollectionExtensions.AddGraphQLServer(IServiceCollection services, String schemaName, Int32 maxAllowedRequestSize)
at Scathach.Infrastructure.Extensions.ServiceCollectionExtensions.AddScathachApiServer(IServiceCollection serviceCollection) in C:\Users\crobati\OneDrive\Scathach\src\Scathach.Infrastructure\Extensions\ServiceCollectionExtensions.cs:line 16
at Scathach.Program.ConfigureServices(WebApplicationBuilder webApplicationBuilder) in C:\Users\crobati\OneDrive\Scathach\src\Scathach\Program.cs:line 160
at Scathach.Program.Main(String[] args) in C:\Users\crobati\OneDrive\Scathach\src\Scathach\Program.cs:line 76
at Scathach.Program.<Main>(String[] args)

N

NoriegaOP•12/18/23, 9:24 PM

seems to be the following line when I register a gql server

serviceCollection.AddGraphQLServer()
    .AddQueryType<QueryType>()
    .AddType<CharacterType>();

serviceCollection.AddGraphQLServer()
    .AddQueryType<QueryType>()
    .AddType<CharacterType>();

serviceCollection.AddGraphQLServer()
    .AddQueryType<QueryType>()
    .AddType<CharacterType>();

serviceCollection.AddGraphQLServer()
    .AddQueryType<QueryType>()
    .AddType<CharacterType>();

A

Andrew•12/18/23, 9:58 PM

yea, likely the GraphQL library broke and will need to have something similar to this line https://github.com/jbogard/MediatR/blob/6baaeef7a16ca75cb905829f870f79c6334ef40e/src/MediatR/Registration/ServiceRegistrar.cs#L273

GitHub

MediatR/src/MediatR/Registration/ServiceRegistrar.cs at 6baaeef7a16...

Simple, unambitious mediator implementation in .NET - jbogard/MediatR

A

Andrew•12/18/23, 9:59 PM

that happened in the net8 runtime change https://github.com/dotnet/runtime/pull/87183/files#diff-90a4b966bf74781df1f355057ad5adca90af0211e46c659965ce745fb0594b5dR157

GitHub

Add Keyed Services Support to Dependency Injection by benjaminpetit...

Related issue: #64427
Since my last proposal (https://gist.github.com/benjaminpetit/49a6b01692d0089b1d0d14558017efbc) we made some changes and took some decisions.
This PR is still in draft, but ev...

A

Andrew•12/18/23, 9:59 PM

so you're doing the right thing, the library you're using isn't

N

NoriegaOP•12/19/23, 2:33 AM

@Andrew (ryzngard | they/them) I was meant to update on this way earlier, but i needed to update a graphql package in my project

N

NoriegaOP•12/19/23, 2:34 AM

turns out I was supposed to update it from nuget

Exception when attempting to use keyed dependencies

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