UseCoravelPro() error

[XardasLord]

I have an error at this line: app.UseCoravelPro(). The error says:

System.InvalidOperationException: 'No service for type 'GP.SS.Database.SaldeoSynchronizatorContext' has been registered.'

But according to the documentation I have registered it:

services.AddDbContext<ISaldeoSynchronizatorContext, SaldeoSynchronizatorContext>( opts => opts.UseOracle(Configuration.GetConnectionString("SaldeoSynchronizatorDB"), b => b.MigrationsAssembly(typeof(ISaldeoSynchronizatorContext).Namespace)) );

services.AddCoravelPro(typeof(SaldeoSynchronizatorContext));

[jamesmh]

Try services.AddCoravelPro(typeof(ISaldeoSynchronizatorContext)); - although I'm not totally sure if that would work.

[jamesmh]

The issue is that whatever type you pass to AddCoravelPro has to be registered as the actual type in the service container vs. a resolved type. Let me know 👍

[XardasLord]

@jamesmh Thanks for your very fast answer :)

I tried it services.AddCoravelPro(typeof(ISaldeoSynchronizatorContext)) earlier and got this message:

System.Reflection.ReflectionTypeLoadException: 'Unable to load one or more of the requested types.
Could not load file or assembly 'System.DirectoryServices.Protocols, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.

But I also tried to register DbContext like following (without interface):

services.AddDbContext<SaldeoSynchronizatorContext>(
                opts => opts.UseOracle(Configuration.GetConnectionString("SaldeoSynchronizatorDB"),
                    b => b.MigrationsAssembly(typeof(SaldeoSynchronizatorContext).Namespace))
            );

But then I got this error message:

System.InvalidOperationException: 'Unable to resolve service for type 'GP.SS.Database.ISaldeoSynchronizatorContext' while attempting to activate 'GP.SS.Business.SynchronizationService'.'

[jamesmh]

Did you try this combination?

services.AddDbContext<SaldeoSynchronizatorContext>(
                opts => opts.UseOracle(Configuration.GetConnectionString("SaldeoSynchronizatorDB"),
                    b => b.MigrationsAssembly(typeof(SaldeoSynchronizatorContext).Namespace))
            );

services.AddCoravelPro(typeof(SaldeoSynchronizatorContext));

[XardasLord]

Yes, then I got this error:

System.InvalidOperationException: 'Unable to resolve service for type 'GP.SS.Database.ISaldeoSynchronizatorContext' while attempting to activate 'GP.SS.Business.SynchronizationService'.'

EDIT: @jamesmh Wait, but this error is because I inject the dbcontext interface in another service... Hmm but isn't your library prepared for the injectable dbcontext?

[XardasLord]

@jamesmh
I removed interface for DbContext and replaced it just to inject the dbContext class in other services.
Now I have this error:

System.Reflection.ReflectionTypeLoadException: 'Unable to load one or more of the requested types.
Could not load file or assembly 'System.DirectoryServices.Protocols, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.

[XardasLord]

I solved the problem by adding nuget package System.DirectoryServices.Protocols. There is nothing in a documentation about it - maybe you can add some info about it? :)

[jamesmh]

That doesn't sound like an issue with Coravel Pro, but looks like some other transient dependencies that was missing.

What version of .NET Core are you using?

[XardasLord]

I'm using .NET Core 2.2

[jamesmh]

K. Coravel Pro has no dependency on DirectoryServices. Sounds like the either the Oracle provider or potentially something else in perhaps another project (maybe?) has a transitive dependency on that package - for some reason.

I'll close this this now 👍 Glad you figure it out 😊