.NET 8.0 Preview 7

[rbhanda]

Release Notes

Please report any issues you find with .NET 8 Preview 7, either responding to this issue, creating a new issue or creating a new issue in one of the following repos:

• dotnet/aspnetcore - for ASP.NET Core questions
• dotnet/efcore - for Entity Framework Core questions
• dotnet/sdk - for CLI tools and questions
• dotnet/runtime - for runtime, API, or installer issues and questions
• dotnet/winforms - for WinForms issues
• dotnet/wpf - for WPF issues
• nuget/home - for NuGet questions and issues

Known Issues

If there are any issues with this release we will track them here and check issues off as they're resolved. See the linked issues for details on progress and resolution details.

[RoySalisbury]

Updated to preview 7 (ASPNET & EF). The I get the following missing method exception.

System.MissingMethodException: Method not found: 'Void Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping..ctor(System.String, System.Type, System.Nullable`1<System.Data.DbType>, Boolean, System.Nullable`1<Int32>, Boolean, System.Nullable`1<Int32>, System.Nullable`1<Int32>)'.
   at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerSqlVariantTypeMapping..ctor(String storeType)
   at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerTypeMappingSource..ctor(TypeMappingSourceDependencies dependencies, RelationalTypeMappingSourceDependencies relationalDependencies)
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
   at System.Reflection.MethodBaseInvoker.InvokeDirectByRefWithFewArgs(Object obj, Span`1 copyOfArgs, BindingFlags invokeAttr)
   at System.Reflection.MethodBaseInvoker.InvokeWithFewArgs(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite constructorCallSite, RuntimeResolverContext context)
   

Much longer stack trace but its mainly DI service lookups.

Also went back to EF 7.0.10 and 7.0.9 (with ASPNET @ preview 7) and the same issue.

[Wiz1991]

Upgraded to preview 8.0. Trying to make use of IKeyedServices.
Injecting as specified using IServiceProvider.AddKeyedScoped<>()

When trying to resolve using GetKeyedService<>() i get the following error:
This service provider doesn't support keyed services.

[WeihanLi]

Trying to make use of IKeyedServices. Injecting as specified using IServiceProvider.AddKeyedScoped<>()

When trying to resolve using GetKeyedService<>() i get the following error: This service provider doesn't support keyed services.

The same issue met, issue created here dotnet/runtime#90235

edit

already fixed while the fix not included in the preview 7 release, maybe we should document it as a known issue

[RoySalisbury]

Updated to preview 7 (ASPNET & EF). The I get the following missing method exception.

System.MissingMethodException: Method not found: 'Void Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping..ctor(System.String, System.Type, System.Nullable`1<System.Data.DbType>, Boolean, System.Nullable`1<Int32>, Boolean, System.Nullable`1<Int32>, System.Nullable`1<Int32>)'.
   

Also went back to EF 7.0.10 and 7.0.9 (with ASPNET @ preview 7) and the same issue.

I have updated to the daily RC builds and this is gone now. My guess is that things are just out of sync for preview 7.

[DuelMonster]

I'm currently getting the following with preview 7:

System.MissingMethodException: Method not found: 'Boolean Microsoft.IdentityModel.Tokens.TokenUtilities.IsRecoverableConfiguration(Microsoft.IdentityModel.Tokens.TokenValidationParameters, Microsoft.IdentityModel.Tokens.BaseConfiguration, Microsoft.IdentityModel.Tokens.BaseConfiguration ByRef)'.

It appears to be missing a param:

---

Having looked into the latest source, this appears to have been resolved: src/System.IdentityModel.Tokens.Jwt [line 941]

Guess I'll wait for preview 8 😉

[WeihanLi]

There's no preview 8, next release would be RC1

[DuelMonster]

Turned out to be the System.IdentityModel.Tokens.Jwt didn't update to 6.32.2 when I updated Microsoft.IdentityModel.Tokens to 6.32.2

[karpikpl]

One bug I found - (that's already fixed but I'll explain) is with template dotnet new webapi --auth SingleOrg on net8.

It creates project with following dependencies:

    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="8.0.0-preview.7.23375.9" />
    <PackageReference Include="Microsoft.AspNetCore.Authentication.OpenIdConnect" Version="8.0.0-preview.7.23375.9" />
    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.0-preview.7.23375.9" />
    <PackageReference Include="Microsoft.Identity.Web" Version="2.12.2" />
    <PackageReference Include="Microsoft.Identity.Web.DownstreamApi" Version="2.12.2" />
    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />

when configured with AAD values for Domain, TenantId and ClientId, the APIs always return 401 with invalid_token message.
Updating Microsoft.Identity.Web to 2.13.4 fixes the issue, but it took me whole day of debugging to figure that out.

Hopefully this helps someone who faces this issue. If someone tells me where I can submit a PR to templates repo, I'd be happy to submit the fix.

[rbhanda]

closing in favor of #8759