在 .net 核心项目中引用项目后无法读取外部程序集

Question

我正在尝试在我的 Asp.Net 核心项目上安装和配置 Autofac。我在名为 CustomerOrder.Web 的 Asp.Net 核心项目中引用了一个名为 CustomerOrder.Data 的项目。我能够看到项目被成功引用，并且可以使用 using 关键字访问命名空间。尽管命名空间中的 class 名称之一变为红色。例如。命名空间使用 CustomerOrder.Data.基础设施；命名空间中的数据被读取。因此它无法识别我在我的 Web 项目中引用的接口和 classes。这是代码

Project.Json 文件在 CustomerOrder.Data 项目中

{
  "version": "1.0.0-*",

  "dependencies": {
    "CustomerOrder.Model": "1.0.0-*",
    "Microsoft.EntityFrameworkCore": "1.1.0",
    "Microsoft.EntityFrameworkCore.Relational": "1.0.1",
    "Microsoft.Extensions.Caching.Abstractions": "1.1.0",
    "NETStandard.Library": "1.6.1"
  },

  "frameworks": {
    "netstandard1.6": {
      "imports": "dnxcore50"

    }
  }
}

例如 CustomerOrder.Data 项目中的 DBFactory class

namespace CustomerOrder.Data.Infrastructure
{
    public class DbFactory : Disposable, IDbFactory
    {
        CustomerOrderEntities _dbContext;
        private DbContextOptions<CustomerOrderEntities> _options;

        public CustomerOrderEntities Init()
        {
            _options = new DbContextOptions<CustomerOrderEntities>();
            return _dbContext ?? (_dbContext = new CustomerOrderEntities(_options));
        }

        protected override void DisposeCore()
        {
            _dbContext?.Dispose();
        }
    }
}

Startup.cs 文件在 CustomerOrder.Web 项目中

public class Startup
{  
public void ConfigureServices(IServiceCollection services)
        {
            // Add framework services.
            services.AddMvc();

            // Create the container builder.
            var builder = new ContainerBuilder();

            // Register dependencies, populate the services from
            // the collection, and build the container. If you want
            // to dispose of the container at the end of the app,
            // be sure to keep a reference to it as a property or field.

           
            builder.RegisterType<UnitOfWork>().As<IUnitOfWork>();
            builder.RegisterType<DbFactory>().As<IDbFactory>();
            builder.RegisterType<CustomerRepository>().As<ICustomerRepository>();
            builder.RegisterType<ProductRepository>().As<ICustomerRepository>();
            builder.RegisterType<OrderRepository>().As<IOrderRepository>();

            builder.Populate(services);
            this.ApplicationContainer = builder.Build();

            // Create the IServiceProvider based on the container.
            return new AutofacServiceProvider(this.ApplicationContainer);

        }
}

Project.Json CustomerOrder.Web 项目中的文件

{
  "dependencies": {
    "Microsoft.NETCore.App": {
      "version": "1.1.0",
      "type": "platform"
    },
    "Microsoft.AspNetCore.AngularServices": "1.0.0-beta-000019",
    "Microsoft.AspNetCore.Diagnostics": "1.0.0",
    "Microsoft.AspNetCore.Mvc": "1.0.1",
    "Microsoft.AspNetCore.Razor.Tools": {
      "version": "1.1.0-preview4-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": "1.1.0",
    "Microsoft.Extensions.Logging": "1.1.0",
    "Microsoft.Extensions.Logging.Console": "1.0.0",
    "Microsoft.Extensions.Logging.Debug": "1.0.0",
    "Microsoft.Extensions.Options.ConfigurationExtensions": "1.0.0",
    "Autofac.Extensions.DependencyInjection": "4.0.0",
    "Microsoft.EntityFrameworkCore.SqlServer": "1.1.0",
    "Microsoft.EntityFrameworkCore": "1.1.0",
    "Microsoft.EntityFrameworkCore.Relational": "1.1.0",
    "CustomerOrder.Data": "1.0.0-*",
    "CustomerOrder.Model": "1.0.0-*",
    "CustomerOrder.Service": "1.0.0-*"
  },

  "tools": {
    "Microsoft.AspNetCore.Razor.Tools": "1.1.0-preview4-final",
    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.1.0-preview4-final",
    "Microsoft.DotNet.Watcher.Tools": "1.1.0-preview4-final"
  },

  "frameworks": {
    "netcoreapp1.6": {
      "imports": [
        "dnxcore50",
        "portable-net45+win8"
      ]
    }
  },

  "buildOptions": {
    "emitEntryPoint": true,
    "preserveCompilationContext": true
  },

  "runtimeOptions": {
    "configProperties": {
      "System.GC.Server": true
    }
  },

  "publishOptions": {
    "include": [
      "appsettings.json",
      "ClientApp/dist",
      "node_modules",
      "Views",
      "web.config",
      "wwwroot"
    ]
  },

  "scripts": {
    "prepublish": [
      "npm install",
      "node node_modules/webpack/bin/webpack.js --config webpack.config.vendor.js --env.prod",
      "node node_modules/webpack/bin/webpack.js --env.prod"
    ],
    "postpublish": [ "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%" ]
  },

  "tooling": {
    "defaultNamespace": "CustomerOrder.Web"
  }
}

由于某些原因，项目无法理解 UnitOfWork、IUnitOfWork、DbFactory、IDbFactory 等

            builder.RegisterType<UnitOfWork>().As<IUnitOfWork>();
            builder.RegisterType<DbFactory>().As<IDbFactory>();
            builder.RegisterType<CustomerRepository>().As<ICustomerRepository>();
            builder.RegisterType<ProductRepository>().As<ICustomerRepository>();
            builder.RegisterType<OrderRepository>().As<IOrderRepository>();

核心版本似乎有问题。有人遇到过这个吗？

Answer 1

我找到了解决这个问题的方法。 Resharper 是罪魁祸首。我禁用了 resharper，现在一切正常。

在 .net 核心项目中引用项目后无法读取外部程序集

Not able to read the external assembly after project referenced in .net core project

c#

.net-core

asp.net-core