无法在mac

时间：2016-11-16 23:54:07

标签： c# .net entity-framework entity-framework-core .net-core

我试图使用.net内核从我MAC上的现有数据库反向设计模型类。数据库在带有Windows的VM中运行，我可以从osx连接到它。

在我的project.json中，我有以下内容：

"dependencies": {
    "Microsoft.NETCore.App": {
      "version": "1.0.1",
      "type": "platform"
    },
    "Microsoft.AspNetCore.AngularServices": "1.0.0-*",
    "Microsoft.AspNetCore.Diagnostics": "1.0.0",
    "Microsoft.AspNetCore.Mvc": "1.0.1",
    "Microsoft.AspNetCore.Razor.Tools": {
      "version": "1.0.0-preview2-final",
      "type": "build"
    },
    "Microsoft.AspNetCore.Server.IISIntegration": "1.0.0",
    "Microsoft.AspNetCore.Server.Kestrel": "1.0.1",
    "Microsoft.AspNetCore.StaticFiles": "1.0.0",
    "Microsoft.Extensions.Configuration.EnvironmentVariables": "1.0.0",
    "Microsoft.Extensions.Configuration.Json": "1.0.0",
    "Microsoft.Extensions.Configuration.CommandLine": "1.0.0",
    "Microsoft.Extensions.Logging": "1.0.0",
    "Microsoft.Extensions.Logging.Console": "1.0.0",
    "Microsoft.Extensions.Logging.Debug": "1.0.0",
    "Microsoft.Extensions.Options.ConfigurationExtensions": "1.0.0",

    "Microsoft.EntityFrameworkCore.Design": {
      "type": "build",
      "version": "1.0.0-preview2-final"
    },
    "Microsoft.EntityFrameworkCore.SqlServer.Design": "1.0.0-rc2-final",
    "Microsoft.EntityFrameworkCore.SqlServer": "1.0.0-rc2-final"
  },

  "tools": {
    "Microsoft.AspNetCore.Razor.Tools": "1.0.0-preview2-final",
    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final",
    "Microsoft.DotNet.Watcher.Tools": "1.0.0-preview2-final",
    "Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final"
  },

  "frameworks": {
    "netcoreapp1.0": {
      "imports": [
        "dotnet5.6",
        "portable-net45+win8"
      ]
    }
  },

  "buildOptions": {
    "emitEntryPoint": true,
    "preserveCompilationContext": true,
    "compile": {
      "exclude": ["node_modules"]
    }
  }

但是当我跑步时

dotnet ef dbcontext scaffold "myDbConnectString" Microsoft.EntityFrameworkCore.SqlServer

我收到以下错误，我无法通过此

 An error occurred while calling method 'ConfigureDesignTimeServices' on startup class
     

＆＃39; Microsoft.EntityFrameworkCore.Scaffolding.SqlServerDesignTimeServices＆＃39 ;.   考虑使用IDbContextFactory来覆盖初始化   DbContext在设计时。错误：无法加载类型   ＆＃39; Microsoft.Extensions.DependencyInjection.ServiceCollectionExtensions＆＃39;   来自assembly＆＃39; Microsoft.Extensions.DependencyInjection.Abstractions，   Version = 1.0.0.0，Culture = neutral，PublicKeyToken = adb9793829ddae60＆＃39;。           System.AggregateException：发生一个或多个错误。 （无法解析类型的服务   ＆＃39; Microsoft.EntityFrameworkCore.Scaffolding.IScaffoldingModelFactory＆＃39;   在尝试激活时   ＆＃39; Microsoft.EntityFrameworkCore.Scaffolding.Internal.ReverseEngineeringGenerator＆＃39 ;.）   ---＆GT; System.InvalidOperationException：无法解析类型的服务   ＆＃39; Microsoft.EntityFrameworkCore.Scaffolding.IScaffoldingModelFactory＆＃39;   在尝试激活时   ＆＃39; Microsoft.EntityFrameworkCore.Scaffolding.Internal.ReverseEngineeringGenerator＆＃39 ;.              在Microsoft.Extensions.DependencyInjection.ServiceLookup.Service.PopulateCallSites（ServiceProvider）   提供者，ISet 1 callSiteChain, ParameterInfo[] parameters, Boolean throwIfCallSiteNotFound) at Microsoft.Extensions.DependencyInjection.ServiceLookup.Service.CreateCallSite(ServiceProvider provider, ISet 1 callSiteChain）              在Microsoft.Extensions.DependencyInjection.ServiceProvider.GetResolveCallSite（IService）   服务，ISet 1 callSiteChain) at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetServiceCallSite(Type serviceType, ISet 1 callSiteChain）              在Microsoft.Extensions.DependencyInjection.ServiceProvider.CreateServiceAccessor（Type   serviceType，ServiceProvider serviceProvider）              at System.Collections.Concurrent.ConcurrentDictionaryExtensions.GetOrAdd [TKey，TValue，TArg]（ConcurrentDictionary 2 dictionary, TKey key, Func 3 valueFactory，TArg arg）              在Microsoft.Extensions.DependencyInjection.ServiceProvider.GetService（Type   服务类型）              在Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService（IServiceProvider）   提供者，类型serviceType）              在Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService [T]（IServiceProvider   提供商）              在Microsoft.EntityFrameworkCore.Design.DatabaseOperations.ReverseEngineerAsync（String   provider，String connectionString，String outputDir，String   dbContextClassName，IEnumerable 1 schemas, IEnumerable 1个表，   Boolean useDataAnnotations，Boolean overwriteFiles，CancellationToken   的CancellationToken）              在Microsoft.EntityFrameworkCore.Design.Internal.OperationExecutor.ReverseEngineerAsync（String   provider，String connectionString，String outputDir，String   dbContextClassName，IEnumerable 1 schemaFilters, IEnumerable 1   tableFilters，Boolean useDataAnnotations，Boolean overwriteFiles，   取消语音取消语言）              在Microsoft.EntityFrameworkCore.Tools.Cli.DbContextScaffoldCommand.d__1.MoveNext（）              ---内部异常堆栈跟踪结束---              在System.Threading.Tasks.Task.ThrowIfExceptional（Boolean includeTaskCanceledExceptions）              在System.Threading.Tasks.Task 1.GetResultCore(Boolean waitCompletionNotification) at Microsoft.Extensions.CommandLineUtils.CommandLineApplication.Execute(String[] args) at Microsoft.EntityFrameworkCore.Tools.Cli.Program.Main(String[] args) ---> (Inner Exception #0) System.InvalidOperationException: Unable to resolve service for type 'Microsoft.EntityFrameworkCore.Scaffolding.IScaffoldingModelFactory' while attempting to activate 'Microsoft.EntityFrameworkCore.Scaffolding.Internal.ReverseEngineeringGenerator'. at Microsoft.Extensions.DependencyInjection.ServiceLookup.Service.PopulateCallSites(ServiceProvider provider, ISet 1 callSiteChain，ParameterInfo []参数，布尔值   throwIfCallSiteNotFound）              在Microsoft.Extensions.DependencyInjection.ServiceLookup.Service.CreateCallSite（ServiceProvider）   提供者，ISet 1 callSiteChain) at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetResolveCallSite(IService service, ISet 1 callSiteChain）              在Microsoft.Extensions.DependencyInjection.ServiceProvider.GetServiceCallSite（Type   serviceType，ISet 1 callSiteChain) at Microsoft.Extensions.DependencyInjection.ServiceProvider.CreateServiceAccessor(Type serviceType, ServiceProvider serviceProvider) at System.Collections.Concurrent.ConcurrentDictionaryExtensions.GetOrAdd[TKey,TValue,TArg](ConcurrentDictionary 2   字典，TKey密钥，Func 3 valueFactory, TArg arg) at Microsoft.Extensions.DependencyInjection.ServiceProvider.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.Design.DatabaseOperations.ReverseEngineerAsync(String provider, String connectionString, String outputDir, String dbContextClassName, IEnumerable 1个模式，IEnumerable 1 tables, Boolean useDataAnnotations, Boolean overwriteFiles, CancellationToken cancellationToken) at Microsoft.EntityFrameworkCore.Design.Internal.OperationExecutor.ReverseEngineerAsync(String provider, String connectionString, String outputDir, String dbContextClassName, IEnumerable 1个schemaFilters，IEnumerable`1   tableFilters，Boolean useDataAnnotations，Boolean overwriteFiles，   取消语音取消语言）              在Microsoft.EntityFrameworkCore.Tools.Cli.DbContextScaffoldCommand.d__1.MoveNext（）＆lt; ---           发生了一个或多个错误。 （无法解析类型的服务   ＆＃39; Microsoft.EntityFrameworkCore.Scaffolding.IScaffoldingModelFactory＆＃39;   在尝试激活时   ＆＃39; Microsoft.EntityFrameworkCore.Scaffolding.Internal.ReverseEngineeringGenerator＆＃39;。）

我试图来回更改我的依赖项的版本，但没有结果。有人有指点吗？

2 个答案:

答案 0 :(得分：0)

您是否尝试过使用RTM版本的Entity Framework？

{
  "Microsoft.EntityFrameworkCore.SqlServer.Design": "1.0.1",
  "Microsoft.EntityFrameworkCore.SqlServer": "1.0.1"
}

答案 1 :(得分：0)

刚刚开始工作。 我更新到.net核心1.1.0并修改了我的project.json以使用更新的版本。希望这可以帮助别人 project.json： ＆＃34;依赖＆＃34;：{   ＆＃34; Microsoft.NETCore.App＆＃34;：{     ＆＃34;版本＆＃34;：＆＃34; 1.1.0＆＃34;，     ＆＃34;输入＆＃34;：＆＃34;平台＆＃34;   }，   ＆＃34; Microsoft.AspNetCore.AngularServices＆＃34;：＆＃34; 1.0.0 - *＆＃34;，   ＆＃34; Microsoft.AspNetCore.Diagnostics＆＃34;：＆＃34; 1.1.0＆＃34;，   ＆＃34; Microsoft.AspNetCore.Mvc＆＃34;：＆＃34; 1.1.0＆＃34;，   ＆＃34; Microsoft.AspNetCore.Razor.Tools＆＃34;：{     ＆＃34;版本＆＃34;：＆＃34; 1.1.0-preview4-final＆＃34;，     ＆＃34;输入＆＃34;：＆＃34; build＆＃34;   }，   ＆＃34; Microsoft.AspNetCore.Server.IISIntegration＆＃34;：＆＃34; 1.1.0＆＃34;，   ＆＃34; Microsoft.AspNetCore.Server.Kestrel＆＃34;：＆＃34; 1.1.0＆＃34;，   ＆＃34; Microsoft.AspNetCore.StaticFiles＆＃34;：＆＃34; 1.1.0＆＃34;，   ＆＃34; Microsoft.Extensions.Configuration.EnvironmentVariables＆＃34;：＆＃34; 1.1.0＆＃34;，   ＆＃34; Microsoft.Extensions.Configuration.Json＆＃34;：＆＃34; 1.1.0＆＃34;，   ＆＃34; Microsoft.Extensions.Configuration.CommandLine＆＃34;：＆＃34; 1.1.0＆＃34;，   ＆＃34; Microsoft.Extensions.Logging＆＃34;：＆＃34; 1.1.0＆＃34;，   ＆＃34; Microsoft.Extensions.Logging.Console＆＃34;：＆＃34; 1.1.0＆＃34;，   ＆＃34; Microsoft.Extensions.Logging.Debug＆＃34;：＆＃34; 1.1.0＆＃34;，   ＆＃34; Microsoft.Extensions.Options.ConfigurationExtensions＆＃34;：＆＃34; 1.1.0＆＃34;，   ＆＃34; Microsoft.EntityFrameworkCore.Design＆＃34;：{     ＆＃34;输入＆＃34;：＆＃34; build＆＃34;，     ＆＃34;版本＆＃34;：＆＃34; 1.1.0＆＃34;   }，   ＆＃34; Microsoft.EntityFrameworkCore.SqlServer.Design＆＃34;：＆＃34; 1.1.0＆＃34;，   ＆＃34; Microsoft.EntityFrameworkCore.SqlServer＆＃34;：＆＃34; 1.1.0＆＃34; }， ＆＃34;工具＆＃34;：{   ＆＃34; Microsoft.AspNetCore.Razor.Tools＆＃34;：＆＃34; 1.1.0-preview4-final＆＃34;，   ＆＃34; Microsoft.AspNetCore.Server.IISIntegration.Tools＆＃34;：＆＃34; 1.1.0-preview4-final＆＃34;，   ＆＃34; Microsoft.DotNet.Watcher.Tools＆＃34;：＆＃34; 1.1.0-preview4-final＆＃34;，   ＆＃34; Microsoft.EntityFrameworkCore.Tools.DotNet＆＃34;：＆＃34; 1.1.0-preview4-final＆＃34; }
相关问题
最新问题