错误CS0411 -EF 6，Dotnet Core 6，MS SQLServer

Question

我的情况 Visual Studio 2022，Blazor WebApplication + ASPNET托管（我的解决方案中的3个项目），带有现有DB的SQL Server（其他应用程序使用）。

Tabuser有一个带有Tabuserroles的FK（1 - ＆GT;许多），

因此我尝试为我的实体创建模型。我将CMD与命令一起使用

dotnet ef dbcontext scaffold "connectionstring" Microsoft.EntityFrameworkCore.SqlServer -o Models

，一切正常，但是...当我编译时，我会收到几个 cs0411 我的桌子错误，

  entity.HasOne()   //entity is TabUserRoles
      .WithMany()
       .HasForeignKey(d => d.IdUser)
        HasConstraintName("Fk_UserRole_Users");

我可以通过编写明确的类型来成功编译

  entity.HasOne<TabUserRole>()                //<====== another Table/DBSet
      .WithMany()
       .HasForeignKey(d => d.IdUser)
        HasConstraintName("Fk_UserRole_Users");

，但是当我尝试检索时 来自我的Blazor Server的错误500的Tabusers的数据

_context.TabUsers.ToList();  //error happens HERE

，开发人员工具控制台是

1 .Failed to load resource: net::ERR_CONNECTION_REFUSED

2. api/user:1          Failed to load resource: the server responded with a status of 500 ()
blazor.webassembly.js:1 crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]
      Unhandled exception rendering component: Response status code does not indicate success: 500 (Internal Server Error).
System.Net.Http.HttpRequestException: Response status code does not indicate success: 500 (Internal Server Error).
   at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode()
   at System.Net.Http.Json.HttpClientJsonExtensions.<GetFromJsonAsyncCore>d__13`1[[CAPhotoManager.Shared.ServiceResponse`1[[System.Collections.Generic.List`1[[CAPhotoManager.Shared.Model.TabUser, CAPhotoManager.Shared, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], CAPhotoManager.Shared, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].MoveNext()
   at CAPhotoManager.Client.Services.UserService.GetUsers() in C:\Progetti\net\CAPhotoManager\CAPhotoManager\Client\Services\UserService.cs:line 17
   at CAPhotoManager.Client.Pages.Users.OnInitializedAsync() in C:\Progetti\net\CAPhotoManager\CAPhotoManager\Client\Pages\Users.razor:line 25
   at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState)