Nuget无法更新.NET Core项目

Question

我安装了.NET Core，并使用ASP.NET Core Web应用程序（.NET Core）模板创建了一个新的VS2015项目。

这个基本项目可以编译并正常运行，并且在“参考”部分下没有任何奇怪的错误。

但是，NuGet程序包管理器UI标识了13个更新。 我大胆/天真地在PM控制台上执行了以下命令：

Update-Package

它输出此成功消息的一长串完整列表，此消息显示在此问题的底部（为简洁起见），并更新project.json的版本号。

这是project.json的依赖项部分：

  "dependencies": {
    "Microsoft.ApplicationInsights.AspNetCore": "1.0.2",
    "Microsoft.AspNetCore.Mvc": "1.1.0",
    "Microsoft.AspNetCore.Routing": "1.1.0",
    "Microsoft.AspNetCore.Server.IISIntegration": "1.1.0",
    "Microsoft.AspNetCore.Server.Kestrel": "1.1.0",
    "Microsoft.Extensions.Configuration.EnvironmentVariables": "1.1.0",
    "Microsoft.Extensions.Configuration.FileExtensions": "1.1.0",
    "Microsoft.Extensions.Configuration.Json": "1.1.0",
    "Microsoft.Extensions.Logging": "1.1.0",
    "Microsoft.Extensions.Logging.Console": "1.1.0",
    "Microsoft.Extensions.Logging.Debug": "1.1.0",
    "Microsoft.Extensions.Options.ConfigurationExtensions": "1.1.0",
    "Microsoft.NETCore.App": {
      "version": "1.1.0",
      "type": "platform"
    }
  },

但是，在解决方案资源管理器中，软件包的版本不会更新。

重建时，会收到大量警告，所有警告都采用以下格式：

warning NU1007: Dependency specified was Microsoft.AspNetCore.Mvc >= 1.1.0 but ended up with Microsoft.AspNetCore.Mvc 1.0.1.

我不明白为什么NuGet会更新package.json，而不是项目引用。 而且，我看不到如何手动修复它。 虽然project.json更新， project.lock.json不大，但通过改变手的版本号也将导致警告变成形式的错误：

NU1001  The dependency Microsoft.Extensions.Logging.Console >= 1.1.0 could not be resolved.

我正在使用VS2015 Update 3和NuGet 3.5。

然后我的问题是：

1. 有没有办法强制NuGet更新项目引用，以便我不会收到这些警告？
2. 知道为什么会这样吗？
3. 有可靠的解决方法（例如手动编辑一些文件）吗？

这是Update-Package的输出：

Retrieving package 'Microsoft.ApplicationInsights.AspNetCore 1.0.2' from 'nuget.org'.
Retrieving package 'Microsoft.AspNetCore.Mvc 1.1.0' from 'nuget.org'.
Retrieving package 'Microsoft.AspNetCore.Routing 1.1.0' from 'nuget.org'.
Retrieving package 'Microsoft.AspNetCore.Server.IISIntegration 1.1.0' from 'nuget.org'.
Retrieving package 'Microsoft.AspNetCore.Server.Kestrel 1.1.0' from 'nuget.org'.
Retrieving package 'Microsoft.Extensions.Configuration.EnvironmentVariables 1.1.0' from 'nuget.org'.
Retrieving package 'Microsoft.Extensions.Configuration.FileExtensions 1.1.0' from 'nuget.org'.
Retrieving package 'Microsoft.Extensions.Configuration.Json 1.1.0' from 'nuget.org'.
Retrieving package 'Microsoft.Extensions.Logging 1.1.0' from 'nuget.org'.
Retrieving package 'Microsoft.Extensions.Logging.Console 1.1.0' from 'nuget.org'.
Retrieving package 'Microsoft.Extensions.Logging.Debug 1.1.0' from 'nuget.org'.
Retrieving package 'Microsoft.Extensions.Options.ConfigurationExtensions 1.1.0' from 'nuget.org'.
Retrieving package 'Microsoft.NETCore.App 1.1.0' from 'nuget.org'.
Uninstalling NuGet package Microsoft.ApplicationInsights.AspNetCore.1.0.0.
Successfully uninstalled 'Microsoft.ApplicationInsights.AspNetCore.1.0.0' from WebApplication3
Installing NuGet package Microsoft.ApplicationInsights.AspNetCore.1.0.2.
Successfully installed 'Microsoft.ApplicationInsights.AspNetCore 1.0.2' to WebApplication3
Uninstalling NuGet package Microsoft.AspNetCore.Mvc.1.0.1.
Successfully uninstalled 'Microsoft.AspNetCore.Mvc.1.0.1' from WebApplication3
Installing NuGet package Microsoft.AspNetCore.Mvc.1.1.0.
Successfully installed 'Microsoft.AspNetCore.Mvc 1.1.0' to WebApplication3
Uninstalling NuGet package Microsoft.AspNetCore.Routing.1.0.1.
Successfully uninstalled 'Microsoft.AspNetCore.Routing.1.0.1' from WebApplication3
Installing NuGet package Microsoft.AspNetCore.Routing.1.1.0.
Successfully installed 'Microsoft.AspNetCore.Routing 1.1.0' to WebApplication3
Uninstalling NuGet package Microsoft.AspNetCore.Server.IISIntegration.1.0.0.
Successfully uninstalled 'Microsoft.AspNetCore.Server.IISIntegration.1.0.0' from WebApplication3
Installing NuGet package Microsoft.AspNetCore.Server.IISIntegration.1.1.0.
Successfully installed 'Microsoft.AspNetCore.Server.IISIntegration 1.1.0' to WebApplication3
Uninstalling NuGet package Microsoft.AspNetCore.Server.Kestrel.1.0.1.
Successfully uninstalled 'Microsoft.AspNetCore.Server.Kestrel.1.0.1' from WebApplication3
Installing NuGet package Microsoft.AspNetCore.Server.Kestrel.1.1.0.
Successfully installed 'Microsoft.AspNetCore.Server.Kestrel 1.1.0' to WebApplication3
Uninstalling NuGet package Microsoft.Extensions.Configuration.EnvironmentVariables.1.0.0.
Successfully uninstalled 'Microsoft.Extensions.Configuration.EnvironmentVariables.1.0.0' from WebApplication3
Installing NuGet package Microsoft.Extensions.Configuration.EnvironmentVariables.1.1.0.
Successfully installed 'Microsoft.Extensions.Configuration.EnvironmentVariables 1.1.0' to WebApplication3
Uninstalling NuGet package Microsoft.Extensions.Configuration.FileExtensions.1.0.0.
Successfully uninstalled 'Microsoft.Extensions.Configuration.FileExtensions.1.0.0' from WebApplication3
Installing NuGet package Microsoft.Extensions.Configuration.FileExtensions.1.1.0.
Successfully installed 'Microsoft.Extensions.Configuration.FileExtensions 1.1.0' to WebApplication3
Uninstalling NuGet package Microsoft.Extensions.Configuration.Json.1.0.0.
Successfully uninstalled 'Microsoft.Extensions.Configuration.Json.1.0.0' from WebApplication3
Installing NuGet package Microsoft.Extensions.Configuration.Json.1.1.0.
Successfully installed 'Microsoft.Extensions.Configuration.Json 1.1.0' to WebApplication3
Uninstalling NuGet package Microsoft.Extensions.Logging.1.0.0.
Successfully uninstalled 'Microsoft.Extensions.Logging.1.0.0' from WebApplication3
Installing NuGet package Microsoft.Extensions.Logging.1.1.0.
Successfully installed 'Microsoft.Extensions.Logging 1.1.0' to WebApplication3
Uninstalling NuGet package Microsoft.Extensions.Logging.Console.1.0.0.
Successfully uninstalled 'Microsoft.Extensions.Logging.Console.1.0.0' from WebApplication3
Installing NuGet package Microsoft.Extensions.Logging.Console.1.1.0.
Successfully installed 'Microsoft.Extensions.Logging.Console 1.1.0' to WebApplication3
Uninstalling NuGet package Microsoft.Extensions.Logging.Debug.1.0.0.
Successfully uninstalled 'Microsoft.Extensions.Logging.Debug.1.0.0' from WebApplication3
Installing NuGet package Microsoft.Extensions.Logging.Debug.1.1.0.
Successfully installed 'Microsoft.Extensions.Logging.Debug 1.1.0' to WebApplication3
Uninstalling NuGet package Microsoft.Extensions.Options.ConfigurationExtensions.1.0.0.
Successfully uninstalled 'Microsoft.Extensions.Options.ConfigurationExtensions.1.0.0' from WebApplication3
Installing NuGet package Microsoft.Extensions.Options.ConfigurationExtensions.1.1.0.
Successfully installed 'Microsoft.Extensions.Options.ConfigurationExtensions 1.1.0' to WebApplication3
Uninstalling NuGet package Microsoft.NETCore.App.1.0.1.
Successfully uninstalled 'Microsoft.NETCore.App.1.0.1' from WebApplication3
Installing NuGet package Microsoft.NETCore.App.1.1.0.
Successfully installed 'Microsoft.NETCore.App 1.1.0' to WebApplication3
Executing nuget actions took 729.79 ms
Time Elapsed: 00:00:08.2056394

Answer 1

您是否尝试过dotnet restore ？

第二件事是您是否拥有最新的.Net Core 。 尝试下载并安装最新版本的SDK