Issue with running any application with EFCore

[ravenboilinux]

Issue with loading the efcore dlls. Everytime I create a new project with efcore

Exception message: Could not load type 'System.ComponentModel.DataAnnotations.Schema.InversePropertyAttribute' from assembly 'System.ComponentModel.Annotations, Version=4.2.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Stack trace:
   at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.CoreConventionSetBuilder.CreateConventionSet()
   at Microsoft.EntityFrameworkCore.Infrastructure.ModelSource.CreateConventionSet(IConventionSetBuilder conventionSetBuilder)
   at Microsoft.EntityFrameworkCore.Infrastructure.ModelSource.CreateModel(DbContext context, IConventionSetBuilder conventionSetBuilder, IModelValidator validator)
   at System.Lazy`1.CreateValue()
   at System.Lazy`1.LazyInitValue()
   at Microsoft.EntityFrameworkCore.Internal.DbContextServices.CreateModel()
   at Microsoft.EntityFrameworkCore.Internal.DbContextServices.get_Model()
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped(ScopedCallSite scopedCallSite, ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite constructorCallSite, ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped(ScopedCallSite scopedCallSite, ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.DynamicServiceProviderEngine.<>c__DisplayClass1_0.<RealizeService>b__0(ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider)
   at Microsoft.EntityFrameworkCore.DbContext.get_DbContextDependencies()
   at Microsoft.EntityFrameworkCore.DbContext.get_InternalServiceProvider()
   at Microsoft.EntityFrameworkCore.DbContext.get_DbContextDependencies()
   at Microsoft.EntityFrameworkCore.DbContext.get_Model()
   at Microsoft.EntityFrameworkCore.Internal.InternalDbSet`1.get_EntityType()
   at Microsoft.EntityFrameworkCore.Internal.InternalDbSet`1.get_EntityQueryable()
   at Microsoft.EntityFrameworkCore.Internal.InternalDbSet`1.System.Linq.IQueryable.get_Provider()
   at Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.Include[TEntity,TProperty](IQueryable`1 source, Expression`1 navigationPropertyPath)
   at MGFConfiguration.MGFConfigurationProvider.Load() in C:\Users\micha\source\repos\InnerSanctum\Servers\src\Config\MGFConfiguration\MGFConfigurationProvider.cs:line 30
   at Microsoft.Extensions.Configuration.ConfigurationRoot..ctor(IList`1 providers)
   at Microsoft.Extensions.Configuration.ConfigurationBuilder.Build()
   at MGF_Photon.PhotonApplication.Setup() in C:\Users\micha\source\repos\InnerSanctum\Servers\src\MGF.Photon\PhotonApplication.cs:line 69
   at Photon.SocketServer.ApplicationBase.PhotonHostRuntimeInterfaces.IPhotonControl.OnPhotonRunning()
   at PhotonHostRuntime.PhotonDomainManager.PhotonPlainAppDomainBehavior.PhotonRunning()
   at PhotonHostRuntime.PhotonDomainManager.PhotonRunning()

Steps to reproduce

Create new solution .net framework
Complete the steps with Get started .net framework- new database
run the project
Here is a sample project for testing

Further technical details

EF Core version: 2.1.4
Database Provider: Microsoft.EntityFrameworkCore.SqlServer
Operating system: Window 10 Pro
IDE: Visual Studio 2017 15.8.2

[ajcvickers]

@ravenboilinux Duplicate of #13268

[joperezr]

I'm not convinced that this is a dupe, this problem seems different. @ravenboilinux looks like I can't reopen the issue on this repo, can you reopen it so we can continue the investigation here please?

[joperezr]

Also, as the next step of the investigation, if you could do either one of this two things it would be great:

1.- If you could provide a repro project I can try debugging the issue myself. (ideal)
2.- If you can't, then do you mind attaching the debugger on it and see which System.ComponentModel.Annotations.dll you are using? I would like to take a peek at that dll since it looks like it might have an incorrect type-forward.

[ravenboilinux]

Here is the link to the repo that msbuild.binlog came from

The solution file is InnerSanctum.sln under the servers folder. To easy test the issue I could recommend to run the TestDatabase Project vs the current startup project. The current startup project requires you to have the Photon Server sdk, from Exit Games, installed at the root of the C drive.

[ravenboilinux]

any news on this issues?

[joperezr]

we haven't yet got the chance to debug this since we are now engaged with the 3.0 preview bugs, but this is definitely on my backlog so I will come back with an answer soon.

[ravenboilinux]

@joperezr any news with issue?

[joperezr]

No news yet. Usually for issues like this we ask for simplified repros so that we can easily get a repro project and diagnose what is wrong. In your case, it is a fairly big project which also has some dependencies on external sdks. Is it at all possible to simplify the repro project?

[ajcvickers]

Closing this in favor of https://github.com/dotnet/corefx/issues/33643 or some other new issue filed where it should go, since this is external to the EF code.

[ravenboilinux]

@ajcvickers
This is using the .net framework not corefx so that ticket would useless for our team.

[ajcvickers]

@ravenboilinux All the cases in that issue are also targeting .NET Framework.