.net core NU1100:无法解析'；System.Reflection.TypeExtensions（>；=4.5.1）和#x27；对于'；。NETStandard，Version=v1.3'；

我正在尝试我的小OSS项目，从AppVeyor到Azure DevOps，几乎完成了所有工作，但现在在

dotnet还原

步骤：

NU1100:无法解析“.NETStandard，Version=v1.3”的“System.Reflection.TypeExtensions（>=4.5.1）”

尽管我清楚地看到它支持.NET标准1.3：

.NETStandard 1.3
    System.Reflection (>= 4.3.0)
    System.Resources.ResourceManager (>= 4.3.0)
    System.Runtime (>= 4.3.0)

我做错了什么

更新：如下所示：

trigger:
- master

pool:
  vmImage: 'windows-2019'

variables:
  solution: 'JWT.sln'
  buildConfiguration: 'Release'
  buildPlatform: 'Any CPU'
  dotNetVersion: '2.2.106'

steps:
- task: DotNetCoreInstaller@0
  displayName: Install .NET Core v$(dotNetVersion)
  inputs:
      version: $(dotNetVersion)

- task: DotNetCoreCLI@2
  displayName: 'Restore NuGet packages'
  inputs:
    command: 'restore'
    projects: '**/*.csproj'
    feedsToUse: config
    nugetConfigPath: NuGet.config

- task: DotNetCoreCLI@2
  displayName: 'Build solution'
  inputs:
    command: 'build'
    projects: '$(solution)'
    configuration: '$(buildConfiguration)'

- task: DotNetCoreCLI@2
  displayName: Run .NET Core tests
  inputs:
    command: 'test'
    projects: 'tests/**/JWT.Tests.Core.csproj'
    arguments: ' -c $(buildConfiguration) --no-build --no-restore'
    testRunner: VSTest
    testResultsFiles: '**/*.trx'
    testResultsFormat: 'xUnit'
    failTaskOnFailedTests: true

- task: DotNetCoreCLI@2
  displayName: Run .NET Framework tests
  inputs:
    command: 'test'
    projects: 'tests/**/JWT.Tests.NetFramework.csproj'
    arguments: ' -c $(buildConfiguration) --no-build --no-restore'
    testRunner: VSTest
    testResultsFiles: '**/*.trx'
    testResultsFormat: 'xUnit'
    failTaskOnFailedTests: true

- task: DotNetCoreCLI@2
  displayName: Package NuGet package
  inputs:
    command: pack
    packagesToPack: 'src/**/*.csproj'
    configuration: $(BuildConfiguration)
    nobuild: true

- task: PublishBuildArtifacts@1
  displayName: Publish build artifacts

更新2:我试图分别恢复.NET Core和.NET Framework的包，但无法恢复：

  displayName: 'Restore NuGet packages for .NET Core'
  inputs:
    command: 'restore'
    projects: '**/*.csproj'
    feedsToUse: config
    nugetConfigPath: NuGet.config

- task: NuGetCommand@2
  displayName: 'Restore NuGet packages for .NET Framework'
  inputs:
    command: 'restore'
    restoreSolution: $(solution)
    feedsToUse: config
    nugetConfigPath: NuGet.config

- task: DotNetCoreCLI@2
  displayName: 'Build solution'
  inputs:
    command: 'build'
    projects: '$(solution)'
    configuration: '$(buildConfiguration)'

但有效的是原始MSBuild，它显式恢复包：

- task: MSBuild@1
  displayName: Build solution
  inputs:
    solution: $(solution)   
    msbuildArguments: /restore /t:build /p:CreatePackage=true /p:NoPackageAnalysis=true /p:PackageOutputPath=$(Build.ArtifactStagingDirectory)\artifacts
    configuration: $(BuildConfiguration)
    maximumCpuCount: true

---

我认为您的dotnet还原任务不是dotnet还原，而是某种程度上的msbuild/NuGet还原

特别是，从日志的最后20行，我假设这个错误与这个包无关，只是这个包是它试图恢复的第一个包，所以这就是它出错的地方，真正的问题更多的是这类事情的变体

诊断步骤1：将生成代理容器更改为不带visual studio的容器，并查看这是否修复了还原错误

我确信（1）恢复步骤对于dotnet核心工具链是多余的，（2）您必须使用dotnet核心工具链在您的dev桌面上构建

因此，我认为迁移到Azure的问题可能是：（1）如何构建正确的管道并不明显，（2）dotnet core/msbuild/nuget交互中可能存在一些bug

• 如果您使用GUI选项，那么您需要的唯一任务就是

  dotnetcore

  任务
• 如果使用YML选项，那么首先只拾取从中提取的片段。该页面上的代码片段相当于在本地计算机上运行dotnet命令，因此可以在本地计算机上进行调试
我的结局是：

---

是否已包含来自的拉取请求？我can@ChrisFCarroll：这是源代码树/公共关系的源代码分支，我首先查看了该回购协议，但后来我意识到您的DevOps构建说它是由触发的，所以我想知道我是否在查看glennawatson的回购协议时出错了。但是现在我做了一个文件比较，我看到基于master的构建确实包含PR。在你的master repo中没有

azure pipelines.yml

文件，所以你正在用GUI构建管道？@ChrisFCarroll:它在

.pipelines\build.yaml

，请看我更新了我的问题，发布了我的yaml管道文件。第二步是运行“dotnet restore”，它失败了，这让我很困惑。

trigger:
- master

pool:
  vmImage: 'windows-2019'

variables:
  solution: 'JWT.sln'
  buildConfiguration: 'Release'
  buildPlatform: 'Any CPU'
  coreVersion: '2.2.106'
  nugetVersion: '4.9.4'

steps:
- task: DotNetCoreInstaller@0
  displayName: Install .NET Core v$(coreVersion)
  inputs:
      version: $(coreVersion)

- task: DotNetCoreCLI@2
  displayName: 'Restore NuGet packages for .NET Core'
  inputs:
    command: 'restore'
    projects: '**/*.csproj'

- task: NuGetToolInstaller@0
  displayName: Install NuGet v$(nugetVersion)
  inputs:
    versionSpec: $(nugetVersion)
    checkLatest: true

- task: NuGetCommand@2
  displayName: 'Restore NuGet packages for .NET Framework'
  inputs:
    command: 'restore'
    restoreSolution: $(solution)

- task: DotNetCoreCLI@2
  displayName: 'Build solution'
  inputs:
    command: 'build'
    projects: '$(solution)'
    arguments: '-c $(buildConfiguration)'

- task: DotNetCoreCLI@2
  displayName: Run .NET Core tests
  inputs:
    command: 'test'
    projects: 'tests/**/JWT.Tests.Core.csproj'
    arguments: ' -c $(buildConfiguration) --no-build --no-restore'
    testRunner: VSTest
    testResultsFiles: '**/*.trx'
    testResultsFormat: 'xUnit'
    failTaskOnFailedTests: true

- task: DotNetCoreCLI@2
  displayName: Run .NET Framework tests
  inputs:
    command: 'test'
    projects: 'tests/**/JWT.Tests.NetFramework.csproj'
    arguments: ' -c $(buildConfiguration) --no-build --no-restore'
    testRunner: VSTest
    testResultsFiles: '**/*.trx'
    testResultsFormat: 'xUnit'
    failTaskOnFailedTests: true

- task: DotNetCoreCLI@2
  displayName: Package NuGet package
  inputs:
    command: pack
    packagesToPack: 'src/**/*.csproj'
    configuration: $(BuildConfiguration)
    nobuild: true

- task: PublishBuildArtifacts@1
  displayName: Publish build artifacts