恢复 Options.ConfigurationExtensions 包时出错答案

【问题标题】：Error while restoring Options.ConfigurationExtensions package恢复 Options.ConfigurationExtensions 包时出错
【发布时间】：2016-11-11 04:55:11
【问题描述】：

我正在尝试实现此链接中提到的选项模式 - https://docs.microsoft.com/en-us/aspnet/core/fundamentals/configuration#options-example

为此，首先在我的 project.json 中添加以下内容

"Microsoft.Extensions.Options.ConfigurationExtensions": "1.0.0"

但是我在恢复这个包时遇到错误- ConfigurationExtensions Error

我完整的project.json是这样的-

{
  "dependencies": {
    "Glimpse": "2.0.0-beta1",
    "Microsoft.AspNetCore.Diagnostics": "1.0.0",
    "Microsoft.AspNetCore.Identity": "1.0.0",
    "Microsoft.AspNetCore.Mvc": "1.0.0",
    "Microsoft.AspNetCore.Mvc.TagHelpers": "1.0.0",
    "Microsoft.AspNetCore.Mvc.WebApiCompatShim": "1.0.0",
    "Microsoft.AspNetCore.Server.IISIntegration": "1.0.0",
    "Microsoft.AspNetCore.Server.Kestrel": "1.0.0",
    "Microsoft.AspNetCore.StaticFiles": "1.0.0",
    "Microsoft.Extensions.Configuration.CommandLine": "1.0.0",
    "Microsoft.Extensions.Configuration.FileExtensions": "1.0.0",
    "Microsoft.Extensions.Configuration.Json": "1.0.0",
    "Microsoft.Extensions.Configuration.UserSecrets": "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.VisualStudio.Web.BrowserLink.Loader": "14.0.0",
    "Microsoft.VisualStudio.Web.CodeGeneration.Tools": {
      "version": "1.0.0-preview2-final",
      "type": "build"
    },
    "Microsoft.VisualStudio.Web.CodeGenerators.Mvc": {
      "version": "1.0.0-preview2-final",
      "type": "build"
    },
    "Microsoft.EntityFrameworkCore.SqlServer": "1.0.0",
    "Microsoft.EntityFrameworkCore.SqlServer.Design": {
      "version": "1.0.0",
      "type": "build"
    },
    "Microsoft.EntityFrameworkCore.Tools": {
      "version": "1.0.0-preview2-final",
      "type": "build"
    }
  },

  "tools": {
    "BundlerMinifier.Core": "2.0.238",
    "Microsoft.AspNetCore.Razor.Tools": "1.0.0-preview2-final",
    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final",
    "Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final",
    "Microsoft.Extensions.SecretManager.Tools": "1.0.0-preview2-final",
    "Microsoft.VisualStudio.Web.CodeGeneration.Tools": {
      "version": "1.0.0-preview2-final",
      "imports": [
        "portable-net45+win8"
      ]
    }
  },

  "frameworks": {
    "net461": { }
  },

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

  "publishOptions": {
    "include": [
      "wwwroot",
      "web.config",
      "Views",
      "Areas/**/Views",
      "appsettings.json"
    ]
  },

  "scripts": {
    "postpublish": [ "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%" ]
  }
}

我的环境是 - VS2015 update3、.net core SDK 1.0.0 和 preview2 工具

我的项目模板是——ASP.NET核心应用（.NET framework 4.6.1）

有人可以指导我吗？

如果我创建新项目，我可以默认看到 ConfigurationExtensions

"Microsoft.Extensions.Options.ConfigurationExtensions": "1.0.0"

但是当我在 RC1 期间创建的现有项目中添加它时，它给了我错误消息-

Error NU1001 The dependency Microsoft.Extensions.Options.ConfigurationExtensions >= 1.0.0 could not be resolved.

请帮帮我。

【问题讨论】：

错误信息是什么？
错误 NU1001 无法解析依赖项 Microsoft.Extensions.Options.ConfigurationExtensions >= 1.0.0。 D:\perforce\project.json 19
@svick 对错误有什么建议吗？

标签： asp.net-core asp.net-core-mvc asp.net-core-1.0 project.json

【解决方案1】：

我试图从 VS2015 恢复软件包通过右键单击引用>恢复包

但不知何故，VS2015 并没有恢复这个特定的包。

然后我尝试了dotnet restore 命令，它成功了。

将此添加为自我回答，因此这可能会对将来的某人有所帮助。

【讨论】：