asp.net-core - 程序集'Microsoft.EntityFrameworkCore.Design中找不到入口点-dotnet.exe崩溃

请在下面查看Package Manager控制台中提供的数据。我无法进行添加迁移。当我这样做时，dotnet.exe崩溃。

PM> Add-Migration 1
Unhandled Exception: System.MissingMethodException: Entry point not found in assembly 'Microsoft.EntityFrameworkCore.Design, Version=1.0.1.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'.
PM> dotnet --info
.NET Command Line Tools (1.0.0-preview2-003131)

Product Information:
 Version:            1.0.0-preview2-003131
 Commit SHA-1 hash:  635cf40e58

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.14393
 OS Platform: Windows
 RID:         win10-x64

最佳答案

我通过删除设计引用并且仅使用工具引用来解决了这一问题。

编辑:

随着时间的流逝，我又遇到了另一个错误，据我所知，问题是Microsoft更新了他们的设计包，但没有更新他们的工具包，因此两者不能同时使用，因为如果按照他们的教程进行操作，它应该会获得最新的包。通过遵循它的错误。

我通过将两个包都强制为1.0.0-preview2-final来解决了该问题。
我更新的project.json:

{
  "buildOptions": {
    "emitEntryPoint": true,
    "preserveCompilationContext": true
  },
  "dependencies": {
    "Microsoft.AspNetCore.Session": "1.0.0",
    "Microsoft.AspNetCore.Mvc": "1.0.1",
    "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.FileExtensions": "1.0.0",
    "Microsoft.Extensions.Configuration.Json": "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.NETCore.App": "1.0.1",
    "System.Runtime": "4.1.0",
    "Newtonsoft.Json": "9.0.1",
    "DataAccess": "1.0.0-*",
    "Entities": "1.0.0-*",
    "Microsoft.EntityFrameworkCore.SqlServer": "1.0.1",
    "Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final",
    "Microsoft.EntityFrameworkCore.Design": "1.0.0-preview2-final"
  },
  "frameworks": {
    "netcoreapp1.0": {
      "imports": [
        "dotnet5.6",
        "portable-net45+win8"
      ]
    }
  },
  "publishOptions": {
    "include": [
      "wwwroot",
      "appsettings.json",
      "web.config"
    ]
  },
  "runtimeOptions": {
    "configProperties": {
      "System.GC.Server": true
    }
  },
  "runtimes": {
    "win10-x64": {},
    "win8-x64": {},
    "win7-x64": {}
  },
  "scripts": {
    "postpublish": [ "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%" ]
  },
  "tools": {
    "Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final",
    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final"
  }
}

关于asp.net-core - 程序集'Microsoft.EntityFrameworkCore.Design中找不到入口点-dotnet.exe崩溃，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/40377865/