.net - 这些 ASP.NET Core 依赖项警告的来源是什么？

Question

在更新包运行我的解决方案后，我的 ASP.Net Core 项目中充满了遵循下面概述的模式的警告。

我不知道这个问题的根本原因。

模式:

Dependency Conflict. [project name] [project version] expected [dependency name] >= [registered version] but received [lower version]

Dependency specified was [dependency name] >= [registered version] but ended up with [dependency name] [lower version]

示例:我对依赖项 Microsoft.Extensions.Logging v1.1.1 有此警告:

Dependency Conflict. Statistics 1.0.0 expected Microsoft.Extensions.Logging >= 1.1.1 but received 1.1.0

Dependency specified was Microsoft.Extensions.Logging >= 1.1.1 but ended up with Microsoft.Extensions.Logging 1.1.0

公平地说，在运行 Update-Packages cmdlet 之前，project.json 文件确实引用了 Microsoft.Extensions.Logging v1.1.0。

更新后的project.json文件:

{
  "buildOptions": {
    "emitEntryPoint": true,
    "preserveCompilationContext": true,
    "xmlDoc": true,
    "nowarn": [ "CS1591" ]
  },
  "dependencies": {
    "BusinessEntities": "1.0.0-*",
    "IdentityServer4.AccessTokenValidation": "1.1.0",
    "Ioc": "1.0.0-*",
    "Microsoft.AspNet.WebApi.Client": "5.2.3",
    "Microsoft.AspNetCore.Diagnostics": "1.1.1",
    "Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore": "1.1.1",
    "Microsoft.AspNetCore.Mvc": "1.1.2",
    "Microsoft.AspNetCore.Routing": "1.1.1",
    "Microsoft.AspNetCore.Server.IISIntegration": "1.1.1",
    "Microsoft.AspNetCore.Server.Kestrel": "1.1.1",
    "Microsoft.AspNetCore.Server.Kestrel.Https": "1.1.1",
    "Microsoft.Extensions.Configuration.CommandLine": "1.1.1",
    "Microsoft.Extensions.Configuration.EnvironmentVariables": "1.1.1",
    "Microsoft.Extensions.Configuration.FileExtensions": "1.1.1",
    "Microsoft.Extensions.Configuration.Json": "1.1.1",
    "Microsoft.Extensions.Logging": "1.1.1",
    "Microsoft.Extensions.Logging.Console": "1.1.1",
    "Microsoft.Extensions.Logging.Debug": "1.1.1",
    "Microsoft.Extensions.Options.ConfigurationExtensions": "1.1.1",
    "Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.1.0",
    "Swashbuckle.AspNetCore": "1.0.0-rc1",
    "Swashbuckle.AspNetCore.Swagger": "1.0.0-rc1",
    "Swashbuckle.AspNetCore.SwaggerGen": "1.0.0-rc1",
    "Swashbuckle.AspNetCore.SwaggerUi": "1.0.0-rc1",
    "System.Xml.XmlDocument": "4.3.0",
    "Unity": "4.0.1",
    "WebApiCommon": "1.0.0-*"
  },
  "frameworks": {
    "netcoreapp1.1": {
      "dependencies": {
        "Microsoft.NETCore.App": {
          "type": "platform",
          "version": "1.1.1"
        }

      },
      "imports": [
        "dotnet5.6",
        "portable-net45+win8"
      ]
    }
  },
  "publishOptions": {
    "include": [
      "wwwroot",
      "**/*.cshtml",
      "appsettings.json",
      "web.config"
    ]
  },
  "runtimeOptions": {
    "configProperties": {
      "System.GC.Server": true
    }
  },
  "scripts": {
    "postpublish": [ "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%" ]
  },
  "tools": {
    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.1.0-preview4-final",
    "Microsoft.DotNet.Watcher.Tools": "1.1.0-preview4-final"
  }
}

Answer 1

你的project.json对我来说看起来不错，除非你的BusinessEntities、Ioc或WebApiCommon包有对您收到警告的旧版本软件包的引用。由于我看不到这些包的依赖项列表，因此我无法确定。

如果这些包不是警告的来源，那么我的猜测是您关于重新启动 Visual Studio 的答案起到了作用。对于我来说，Visual Studio 与当前的一组包错误或警告失去同步在 Beta 工具上很常见。

要完全排除 Visual Studio，请在项目文件夹内的命令行上执行 dotnet Restore 和 dotnet build。您可以将在那里看到的消息和错误视为权威来源。