使用 Postgree Db 进行第二次迁移时出错

Question

您好，关于迁移有误：

场地： 项目类型：托管在 NetCoreApi 上的 Blazor 程序集 NetCore 6 预览版 3 Windows 10

行为： 我创建了第一个没有问题的迁移，我也可以毫无问题地更新数据库。 当我尝试创建第二个迁移时，出现以下错误：

    add-migration Second
Build started...
Build succeeded.
System.ArgumentException: Argument isn't an array or generic List (Parameter 'memberInfo')
   at Npgsql.EntityFrameworkCore.PostgreSQL.Utilities.ReferenceNullabilityDecoder.IsArrayOrListElementNonNullable(MemberInfo memberInfo)
   at Npgsql.EntityFrameworkCore.PostgreSQL.Storage.Internal.NpgsqlTypeMappingSource.FindMapping(IProperty property)
   at Microsoft.EntityFrameworkCore.Metadata.Internal.Property.<>c.<get_TypeMapping>b__78_0(IProperty property)
   at Microsoft.EntityFrameworkCore.Internal.NonCapturingLazyInitializer.EnsureInitialized[TParam,TValue](TValue& target, TParam param, Func`2 valueFactory)
   at Microsoft.EntityFrameworkCore.Metadata.Internal.Property.get_TypeMapping()
   at Microsoft.EntityFrameworkCore.Metadata.Internal.Property.Microsoft.EntityFrameworkCore.Metadata.IReadOnlyProperty.FindTypeMapping()
   at Microsoft.EntityFrameworkCore.RelationalPropertyExtensions.FindRelationalTypeMapping(IReadOnlyProperty property)
   at Microsoft.EntityFrameworkCore.RelationalPropertyExtensions.GetColumnType(IReadOnlyProperty property)
   at Microsoft.EntityFrameworkCore.Metadata.Internal.RelationalModel.AddDefaultMappings(RelationalModel databaseModel, IEntityType entityType)
   at Microsoft.EntityFrameworkCore.Metadata.Internal.RelationalModel.Create(IModel model, IRelationalAnnotationProvider relationalAnnotationProvider)
   at Microsoft.EntityFrameworkCore.Metadata.Internal.RelationalModel.Add(IModel model, IRelationalAnnotationProvider relationalAnnotationProvider)
   at Microsoft.EntityFrameworkCore.Infrastructure.RelationalModelRuntimeInitializer.InitializeModel(IModel model, Boolean preValidation)
   at Microsoft.EntityFrameworkCore.Infrastructure.ModelRuntimeInitializer.<>c.<Initialize>b__4_0(ValueTuple`3 args)
   at Microsoft.EntityFrameworkCore.Infrastructure.AnnotatableBase.<>c__30`2.<GetOrAddRuntimeAnnotationValue>b__30_0(String n, ValueTuple`3 t)
   at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd[TArg](TKey key, Func`3 valueFactory, TArg factoryArgument)
   at Microsoft.EntityFrameworkCore.Infrastructure.AnnotatableBase.GetOrAddRuntimeAnnotationValue[TValue,TArg](String name, Func`2 valueFactory, TArg factoryArgument)
   at Microsoft.EntityFrameworkCore.Infrastructure.ModelRuntimeInitializer.Initialize(IModel model, IDiagnosticsLogger`1 validationLogger)
   at Microsoft.EntityFrameworkCore.Migrations.Design.MigrationsScaffolder.ScaffoldMigration(String migrationName, String rootNamespace, String subNamespace, String language)
   at Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.AddMigration(String name, String outputDir, String contextType, String namespace)
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.AddMigrationImpl(String name, String outputDir, String contextType, String namespace)
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.AddMigration.<>c__DisplayClass0_0.<.ctor>b__0()
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.<>c__DisplayClass3_0`1.<Execute>b__0()
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action)
Argument isn't an array or generic List (Parameter 'memberInfo')

如果我删除 DataContextModelSnapshot 并重复操作，每次都会进行第一次迁移。

我不明白错误在哪里。

提前感谢您的帮助