我正在按照本教程播种.NET Core 3.1中的ASP.NET Identity用户和角色

但是当我添加迁移时，出现异常

PM> add-migration seed -context ApplicationDbContext构建开始。构建成功。System.InvalidOperationException：实体类型'IdentityUserLogin'需要定义一个主键。如果你打算使用无钥匙实体类型，请调用“ HasNoKey（）”。在Microsoft.EntityFrameworkCore.Infrastructure.ModelValidator.ValidateNonNullPrimaryKeys（IModel模型，IDiagnosticsLogger1 logger) at Microsoft.EntityFrameworkCore.Infrastructure.ModelValidator.Validate(IModel model, IDiagnosticsLogger在Microsoft.EntityFrameworkCore.Infrastructure.RelationalModelValidator.Validate（IModel模型，IDiagnosticsLogger 1记录器）1 logger) at Microsoft.EntityFrameworkCore.SqlServer.Internal.SqlServerModelValidator.Validate(IModel model, IDiagnosticsLogger在Microsoft.EntityFrameworkCore.Metadata.Conventions.ValidatingConvention.ProcessModelFinalized（1记录器）IConventionModelBuilder modelBuilder，IConventionContext1 context) at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher.ImmediateConventionScope.OnModelFinalized(IConventionModelBuilder modelBuilder) at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher.OnModelFinalized(IConventionModelBuilder modelBuilder) at Microsoft.EntityFrameworkCore.Metadata.Internal.Model.FinalizeModel() at Microsoft.EntityFrameworkCore.ModelBuilder.FinalizeModel() at Microsoft.EntityFrameworkCore.Infrastructure.ModelSource.CreateModel(DbContext context, IConventionSetBuilder conventionSetBuilder) at Microsoft.EntityFrameworkCore.Infrastructure.ModelSource.GetModel(DbContext context, IConventionSetBuilder conventionSetBuilder) at Microsoft.EntityFrameworkCore.Internal.DbContextServices.CreateModel() at Microsoft.EntityFrameworkCore.Internal.DbContextServices.get_Model() at Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder.<>c.<TryAddCoreServices>b__7_3(IServiceProvider p) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitFactory(FactoryCallSite factoryCallSite, RuntimeResolverContext context) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache（ServiceCallSite callSite，RuntimeResolverContext上下文，ServiceProviderEngineScope serviceProviderEngine，RuntimeResolverLockitenCallSiteSiteMain（ServiceCallSiteCallSite，TArgument参数）在MicrosoftVis。 ，RuntimeResolverContext上下文），位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite(ServiceCallSite callSite, TArgument argument) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite constructorCallSite, RuntimeResolverContext context) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache（ServiceCallSite callSite，RuntimeResolverContext上下文，ServiceProviderEngineScope serviceProviderEngine，RuntimeResolverLockitenCallSiteSiteMain（ServiceCallSiteCallSite，TArgument参数）在MicrosoftVis。 ，位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor 2.VisitCallSite(ServiceCallSite callSite, TArgument argument) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.Resolve(ServiceCallSite callSite, ServiceProviderEngineScope scope) at Microsoft.Extensions.DependencyInjection.ServiceLookup.DynamicServiceProviderEngine.<>c__DisplayClass1_0.<RealizeService>b__0(ServiceProviderEngineScope scope) at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.GetService(Type serviceType, ServiceProviderEngineScope serviceProviderEngineScope) at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService(Type serviceType) 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.Microsoft.EntityFrameworkCore.Infrastructure.IInfrastructure<System.IServiceProvider>.get_Instance() at Microsoft.EntityFrameworkCore.Infrastructure.Internal.InfrastructureExtensions.GetService[TService](IInfrastructure1访问器处的RuntimeResolverContext上下文），位于Microsoft.EntityFrameworkCore.Infrastructure.AccessorExtensions.GetService [TService]（IInfrastructure1 accessor) at Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContext(Func1工厂）在Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContext（String contextType）在Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.AddMigration（String name，String outputDir，String contextType）在Microsoft.EntityFrameworkCore.Design.OperationExecutor。 Microsoft.EntityFrameworkCore.Design.OperationExecutor.AddMigration。<> c__DisplayClass0_0。<。ctor> b__0（）at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase。<> c__DisplayClass3_0`1。 Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute上的b__0（）（操作操作）实体类型'IdentityUserLogin'需要定义一个主键。如果你打算使用无钥匙实体类型，请调用“ HasNoKey（）”。

这是我的代码：

public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
    {
        public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options)
        {

        }
        protected override void OnModelCreating(ModelBuilder builder)
        {
            //base.OnModelCreating(builder);
            string ADMIN_ID = "02174cf0–9412–4cfe-afbf-59f706d72cf6";
            string ROLE_ID = "341743f0-asd2–42de-afbf-59kmkkmk72cf6";

            //seed admin role
            builder.Entity<IdentityRole>().HasData(new IdentityRole
            {
                Name = "SuperAdmin",
                NormalizedName = "SuperAdmin",
                Id = ROLE_ID,
                ConcurrencyStamp = ROLE_ID
            });

            //create user
            var appUser = new ApplicationUser
            {
                Id = ADMIN_ID,
                Email = "frankofoedu@gmail.com",
                EmailConfirmed = true,                
                UserName = "frankofoedu@gmail.com"
            };

            //set user password
            PasswordHasher<ApplicationUser> ph = new PasswordHasher<ApplicationUser>();
            appUser.PasswordHash = ph.HashPassword(appUser, "mypassword_?");

            //seed user
            builder.Entity<ApplicationUser>().HasData(appUser);

            //set user role to admin
            builder.Entity<IdentityUserRole<string>>().HasData(new IdentityUserRole<string>
            {
                RoleId = ROLE_ID,
                UserId = ADMIN_ID
            });
        }
    }