ASP.NET dnx ef 命令System.TypeInitializationException

Question

我有一个 asp.net mvc6 项目。

我运行这个命令是在提示 window 上执行的。首先使用代码，我尝试制作数据库。我不明白我的错误或错误在哪里，或者我是否错过了图书馆

1- dnvm 安装 1.0.0-beta8 2- dnvm 使用 1.0.0-beta8 3- dnu 恢复 4- dnx ef 数据库更新（如果我运行 dnx ef --help 或 dnx ef 相同）

System.TypeInitializationException: Se produjo una excepción en el inicializador de tipo de 'Microsoft.Data.Entity.Commands.Program'. ---> System.NullReferenceException: Referencia a objeto no establecida como instancia de un objeto.
   en Microsoft.Data.Entity.Commands.Program..cctor()
   --- Fin del seguimiento de la pila de la excepción interna ---
   en Microsoft.Data.Entity.Commands.Program..ctor()
System.NullReferenceException: Referencia a objeto no establecida como instancia de un objeto.
   en Microsoft.Data.Entity.Commands.Program..cctor()

我的Project.json

{
  "userSecretsId": "aspnet5-Cl.Web.MVC6-271ad9d8-3fda-4cc7-8188-e1c924f58554",
  "version": "1.0.0-*",
  "compilationOptions": {
    "emitEntryPoint": true
  },

  "dependencies": {
    "EntityFramework.Commands": "7.0.0-rc1-final",
    "EntityFramework.MicrosoftSqlServer": "7.0.0-rc1-final",
    "Microsoft.ApplicationInsights.AspNet": "1.0.0-rc1",
    "Microsoft.AspNet.Authentication.Cookies": "1.0.0-rc1-final",
    "Microsoft.AspNet.Authentication.Facebook": "1.0.0-rc1-final",
    "Microsoft.AspNet.Authentication.Google": "1.0.0-rc1-final",
    "Microsoft.AspNet.Authentication.MicrosoftAccount": "1.0.0-rc1-final",
    "Microsoft.AspNet.Authentication.Twitter": "1.0.0-rc1-final",
    "Microsoft.AspNet.Diagnostics.Entity": "7.0.0-rc1-final",
    "Microsoft.AspNet.Identity.EntityFramework": "3.0.0-rc1-final",
    "Microsoft.AspNet.IISPlatformHandler": "1.0.0-rc1-final",
    "Microsoft.AspNet.Mvc": "6.0.0-rc1-final",
    "Microsoft.AspNet.Mvc.TagHelpers": "6.0.0-rc1-final",
    "Microsoft.AspNet.Server.Kestrel": "1.0.0-rc1-final",
    "Microsoft.AspNet.StaticFiles": "1.0.0-rc1-final",
    "Microsoft.AspNet.Tooling.Razor": "1.0.0-rc1-final",
    "Microsoft.Extensions.CodeGenerators.Mvc": "1.0.0-rc1-final",
    "Microsoft.Extensions.Configuration.FileProviderExtensions": "1.0.0-rc1-final",
    "Microsoft.Extensions.Configuration.Json": "1.0.0-rc1-final",
    "Microsoft.Extensions.Configuration.UserSecrets": "1.0.0-rc1-final",
    "Microsoft.Extensions.Logging": "1.0.0-rc1-final",
    "Microsoft.Extensions.Logging.Console": "1.0.0-rc1-final",
    "Microsoft.Extensions.Logging.Debug": "1.0.0-rc1-final",
    "Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.0.0-rc1-final",
    "Sendgrid": "6.3.4"
  },

  "commands": {
    "web": "Microsoft.AspNet.Server.Kestrel",
    "ef": "EntityFramework.Commands"

  },

  "frameworks": {
    "dnx451": { },

  },

  "exclude": [
    "wwwroot",
    "node_modules"
  ],
  "publishExclude": [
    "**.user",
    "**.vspscc"
  ],
  "scripts": {
    "prepublish": [ "npm install", "bower install", "gulp clean", "gulp min" ]
  }
}

Answer 1

您正在使用 rc1 个带有 beta8 dnx 的软件包。升级到 dnx rc1-final 它应该可以工作。

ASP.NET dnx ef 命令System.TypeInitializationException

ASP.NET dnx ef command System.TypeInitializationException

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