.NET 4.6.1类库上的“添加迁移”需要'System.ValueTuple，版本= 0.0.0.0 [英] 'System.ValueTuple, Version=0.0.0.0 required for Add-Migration on .NET 4.6.1 Class Library

问题描述

我将.net标准类库从Entity Framework Core 1.1升级到Entity Framework 2.0

I upgraded a .net standard class library from Entity Framework Core 1.1 to Entity Framework 2.0

我试图在Entity Framework Core类库上运行添加迁移面向.net Framework 4.6.1

I am trying to run Add-Migration on an Entity Framework Core Class Library that targets .net framework 4.6.1

Add-Migration MyMigration

但是随后出现以下错误

System.IO.FileLoadException：无法加载文件或程序集'System.ValueTuple，版本= 0.0.0.0，区域性=中性，PublicKeyToken = cc7b13ffcd2ddd51'或其依赖项之一。找到的程序集的清单定义与程序集引用不匹配。 （来自HRESULT的异常：0x80131040）
文件名：'System.ValueTuple，版本= 0.0.0.0，区域性=中性，PublicKeyToken = cc7b13ffcd2ddd51'
，位于Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.SharedTableConvention。在Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher.ImmediateConventionScope.OnModelBuilt（InternalModelBuilder modelBuilder）处应用（InternalModelBuilder modelBuilder）
在Microsoft.EntityFrameworkCore.Infrastructure.ModelSourceBuild.CreateModel（DbContext context，IConventionSeter IModelValidator验证程序）System.Collections.Concurrent.ConcurrentDictionary 2.GetOrAdd（TKey键，Func 2 valueFactory）
在Microsoft.EntityFrameworkCore.Internal。 Microsoft.EntityFrameworkCore.Internal.DbContextServices.get_Model（）中的DbContextServices.CreateModel（）
Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor 2.VisitCall Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped（SpectrumCallSite scopedCallSite，ServiceProvider provider）的站点（IServiceCallSite callSite，TArgument参数）
Microsoft.Extensions.DependencyInjection.ServiceLookup.CallS $ Viitor c> 2.VisitCallSite（IServiceCallSite callSite，TArgument参数）
在Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor（ConstructorCallSite构造器CallSite，服务提供商提供者）
在Microsoft.Extensions.DependencyInjectupService。 code> 2.VisitCallSite（IServiceCallSite callSite，TArgument参数）Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped（ScopedCallSite scopedCallSite，ServiceProvider provider）中的
Microsoft.Extensions.DependencyInjectionion中的
.CallSiteVisitor 2.VisitCallSite（IServiceCallSite callSite，参数ar ）Microsoft.Extensions.DependencyInjection.ServiceProvider中的$ g $ b）<> c__DisplayClass22_0.b__0（ServiceProvider提供者）Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService（IServiceProvider提供者，类型serviceType）
在Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService [T]（IServiceProvider提供程序）在Microsoft.EntityFrameworkCore.DbContext.get_DbContextDependencies（）
在Microsoft.EntityFrameworkCore.DbContext.get_InternalServiceProvider（）
Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContext（Func 1 factory）上的Microsoft.EntityFrameworkCore.Infrastructure.AccessorExtensions.GetService [TService]（IInfrastructure 1 accessor）
）Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContext（String contextType）中的
Microsoft.EntityFrameworkCore.Design.Intern中的
al.MigrationsOperations.AddMigration（字符串名称，字符串outputDir，字符串contextType）
在Microsoft.EntityFrameworkCore.Design.OperationExecutor.AddMigrationImpl（字符串名称，字符串outputDir，字符串contextType）
在Microsoft.EntityFrameworkCore.Design。 OperationExecutor.OperationBase。<> c__DisplayClass3_0`1.b__0（）
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute（Action action）

System.IO.FileLoadException: Could not load file or assembly 'System.ValueTuple, Version=0.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) File name: 'System.ValueTuple, Version=0.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.SharedTableConvention.Apply(InternalModelBuilder modelBuilder) at Microsoft.EntityFrameworkCore.Metadata.Conventions.Internal.ConventionDispatcher.ImmediateConventionScope.OnModelBuilt(InternalModelBuilder modelBuilder) at Microsoft.EntityFrameworkCore.Infrastructure.ModelSource.CreateModel(DbContext context, IConventionSetBuilder conventionSetBuilder, IModelValidator validator) at System.Collections.Concurrent.ConcurrentDictionary2.GetOrAdd(TKey key, Func2 valueFactory) at Microsoft.EntityFrameworkCore.Internal.DbContextServices.CreateModel() at Microsoft.EntityFrameworkCore.Internal.DbContextServices.get_Model() at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite(IServiceCallSite callSite, TArgument argument) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped(ScopedCallSite scopedCallSite, ServiceProvider provider) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite(IServiceCallSite callSite, TArgument argument) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite constructorCallSite, ServiceProvider provider) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite(IServiceCallSite callSite, TArgument argument) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScoped(ScopedCallSite scopedCallSite, ServiceProvider provider) at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite(IServiceCallSite callSite, TArgument argument) at Microsoft.Extensions.DependencyInjection.ServiceProvider.<>c__DisplayClass22_0.b__0(ServiceProvider provider) 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.Infrastructure.AccessorExtensions.GetService[TService](IInfrastructure1 accessor) at Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContext(Func1 factory) at Microsoft.EntityFrameworkCore.Design.Internal.DbContextOperations.CreateContext(String contextType) at Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.AddMigration(String name, String outputDir, String contextType) at Microsoft.EntityFrameworkCore.Design.OperationExecutor.AddMigrationImpl(String name, String outputDir, String contextType) at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.<>c__DisplayClass3_0`1.b__0() at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action)

我将nuget包System.ValueTuple添加到了csproj中，但仍然出现错误

I added the nuget package of System.ValueTuple to my csproj but I still get the error

 <PackageReference Include="System.ValueTuple" Version="4.4.0" />

推荐答案

添加 AutoGenerateBindingRedirects 和 GenerateBindingRedirectsOutputType 到类库中csproj

Add AutoGenerateBindingRedirects and GenerateBindingRedirectsOutputType to your class library csproj

eg

<PropertyGroup>
    <TargetFramework>net461</TargetFramework>

    ....

    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
    <GenerateBindingRedirectsOutputType>true</GenerateBindingRedirectsOutputType>
</PropertyGroup>

这篇关于.NET 4.6.1类库上的“添加迁移”需要'System.ValueTuple，版本= 0.0.0.0的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！