c# - 找不到程序集 'Microsoft.SqlServer.Types' 版本 10 或更高版本

Question

我有一个问题。我无法将迁移添加到我的 ASP.NET WebAPI 2 项目。我收到错误:

"Spatial types and functions are not available for this provider because the assembly 'Microsoft.SqlServer.Types' version 10 or higher could not be found."

我知道有几个与此相关的问题和答案，例如:

• 'Microsoft.SqlServer.Types' version 10 or higher could not be found on Azure
• "Spatial types and functions are not available" error when converting a string to DbGeometry in ASP.NET

但是!问题是...

• 我已经安装了 Microsoft.SqlServer.Types。
• 我已经在 Application_Start 中配置了 Global.asax:SqlServerTypes.Utilities.LoadNativeAssemblies(Server.MapPath("~/bin"))。
• 引用设置为本地副本 > true。
• NuGet 软件包已全部更新。
• 我已经尝试降级和升级该软件包。

当我尝试运行Add-Migration v002时，这是完整的错误:

System.InvalidOperationException: Spatial types and functions are not available for this provider because the assembly 'Microsoft.SqlServer.Types' version 10 or higher could not be found.
en System.Data.Entity.SqlServer.SqlTypesAssemblyLoader.GetSqlTypesAssembly() en System.Data.Entity.SqlServer.SqlSpatialServices.GeographyFromText(String wellKnownText) en System.Data.Entity.Spatial.DbGeography.FromText(String wellKnownText) en System.Data.Entity.Migrations.Model.ColumnModel.CreateDefaultValue()
en System.Data.Entity.Migrations.Model.ColumnModel..ctor(PrimitiveTypeKind type, TypeUsage typeUsage) en System.Data.Entity.Migrations.Infrastructure.EdmModelDiffer.BuildColumnModel(EdmProperty property, TypeUsage conceptualTypeUsage, TypeUsage defaultStoreTypeUsage, IDictionary2 annotations) en System.Data.Entity.Migrations.Infrastructure.EdmModelDiffer.BuildColumnModel(EdmProperty property, ModelMetadata modelMetadata, IDictionary2 annotations)
en System.Data.Entity.Migrations.Infrastructure.EdmModelDiffer.<>c__DisplayClass2e3.b__2df(EdmProperty p) en System.Data.Entity.Utilities.IEnumerableExtensions.Each[T](IEnumerable1 ts, Action1 action) en System.Data.Entity.Migrations.Infrastructure.EdmModelDiffer.BuildCreateTableOperation(EntitySet entitySet, ModelMetadata modelMetadata) en System.Data.Entity.Migrations.Infrastructure.EdmModelDiffer.b__194(EntitySet es) en System.Linq.Enumerable.WhereSelectEnumerableIterator2.MoveNext()<br/> en System.Collections.Generic.List1..ctor(IEnumerable1 collection)<br/> en System.Linq.Enumerable.ToList[TSource](IEnumerable1 source) en System.Data.Entity.Migrations.Infrastructure.EdmModelDiffer.Diff(ModelMetadata source, ModelMetadata target, Lazy1 modificationCommandTreeGenerator, MigrationSqlGenerator migrationSqlGenerator, String sourceModelVersion, String targetModelVersion) en System.Data.Entity.Migrations.Infrastructure.EdmModelDiffer.Diff(XDocument sourceModel, XDocument targetModel, Lazy1 modificationCommandTreeGenerator, MigrationSqlGenerator migrationSqlGenerator, String sourceModelVersion, String targetModelVersion) en System.Data.Entity.Migrations.DbMigrator.Scaffold(String migrationName, String namespace, Boolean ignoreChanges) en System.Data.Entity.Migrations.Design.MigrationScaffolder.Scaffold(String migrationName, Boolean ignoreChanges) en System.Data.Entity.Migrations.Design.ToolingFacade.ScaffoldRunner.Scaffold(MigrationScaffolder scaffolder) en System.Data.Entity.Migrations.Design.ToolingFacade.ScaffoldRunner.Run() en System.AppDomain.DoCallBack(CrossAppDomainDelegate callBackDelegate) en System.AppDomain.DoCallBack(CrossAppDomainDelegate callBackDelegate)
en System.Data.Entity.Migrations.Design.ToolingFacade.Run(BaseRunner runner) en System.Data.Entity.Migrations.Design.ToolingFacade.Scaffold(String migrationName, String language, String rootNamespace, Boolean ignoreChanges) en System.Data.Entity.Migrations.AddMigrationCommand.Execute(String name, Boolean force, Boolean ignoreChanges) en System.Data.Entity.Migrations.AddMigrationCommand.<>c__DisplayClass2.<.ctor>b__0() en System.Data.Entity.Migrations.MigrationsDomainCommand.Execute(Action command)

Answer 1

经过大量研究，我刚刚安装了“Microsoft System CLR Types for SQL Server 2012”:

• X86 - http://go.microsoft.com/fwlink/?LinkID=239643&clcid=0x409
• X64 - http://go.microsoft.com/fwlink/?LinkID=239644&clcid=0x409

效果非常好!