无法使用 Azure 管道中的 Paket 恢复 NuGet 包（工件馈送）

Question

我正在尝试定义为.NET 核心解决方案构建的管道。 依赖项由Paket管理。 从Azure 工件源下载依赖项。

在第一阶段，我认为问题出在 Paket 上，我能够定义一个无需它即可构建的管道（使用私有包源，我们的私有提要）。

一旦我修复了 Paket 问题，我在尝试让dotnet restore正常工作时遇到了问题。

这是我实际的 YML 定义：

trigger:
- none

pool:
  vmImage: 'windows-latest'

steps:
  - task: UseDotNet@2
    inputs:
      packageType: 'sdk'
      version: '3.1.x'

  - powershell: |
      cd ..
      dotnet tool install -g paket

  - task: setCredentialManager@0

  - task: PaketRestore@0
    inputs:
      PaketPath: '.paket'

  - task: paketCredentialCleanup@0

  # I'm not sure the following task is necessary
  - task: PowerShell@2
    inputs:
      filePath: './installcredprovider.ps1'

  - task: NuGetCommand@2
    inputs:
      command: 'restore'
      restoreSolution: '**/*.sln'
      feedsToUse: 'config'
      nugetConfigPath: './NuGet.config'

  - task: CmdLine@2
    inputs:
      script: 'dotnet restore'

  - task: DotNetCoreCLI@2
    inputs:
      command: 'build'
      projects: '*.csproj'

NuGetCommand@2还原任务失败并显示以下日志：

NuGet Version: 5.4.0.6315
EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
MSBuild auto-detection: using msbuild version '16.5.0.12403' from 'C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Current\bin'. Use option -MSBuildVersion to force nuget to use a specific version of MSBuild.
EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
MSBuild P2P timeout [ms]: 120000
EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Current\bin\msbuild.exe "C:\Users\VssAdministrator\AppData\Local\Temp\NuGetScratch\rjysskyy.m01.nugetinputs.targets" /t:GenerateRestoreGraphFile /nologo /nr:false /v:q /p:NuGetRestoreTargets="C:\Users\VssAdministrator\AppData\Local\Temp\NuGetScratch\1cpdh2ma.wgd.nugetrestore.targets" /p:RestoreUseCustomAfterTargets="True" /p:RestoreTaskAssemblyFile="C:\hostedtoolcache\windows\NuGet\5.4.0\x64\nuget.exe" /p:RestoreSolutionDirectory="d:\a\1\s\\" /p:RestoreConfigFile="d:\a\1\s\NuGet.config" /p:SolutionDir="d:\a\1\s\\" /p:SolutionName="ArtifactsVs"
EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
NuGet.CommandLine.ExitCodeException: Exception of type 'NuGet.CommandLine.ExitCodeException' was thrown.
EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
   at NuGet.CommandLine.MsBuildUtility.<GetProjectReferencesAsync>d__6.MoveNext()
EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
--- End of stack trace from previous location where exception was thrown ---
EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
d:\a\1\s\.paket\Paket.Restore.targets(219,5): error MSB3073: The command ""paket" restore --project "d:\a\1\s\ArtifactsVs.csproj" --output-path "obj" --target-framework "netcoreapp3.1"" exited with code 1. [d:\a\1\s\ArtifactsVs.csproj]
   at NuGet.CommandLine.RestoreCommand.<GetDependencyGraphSpecAsync>d__68.MoveNext()

--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at NuGet.CommandLine.RestoreCommand.<DetermineInputsFromMSBuildAsync>d__63.MoveNext()
##[error]The nuget command failed with exit code(1) and error(EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
EXEC : Standard error : It was not possible to find any compatible framework version [d:\a\1\s\ArtifactsVs.csproj]
d:\a\1\s\.paket\Paket.Restore.targets(219,5): error MSB3073: The command ""paket" restore --project "d:\a\1\s\ArtifactsVs.csproj" --output-path "obj" --target-framework "netcoreapp3.1"" exited with code 1. [d:\a\1\s\ArtifactsVs.csproj])
##[error]Packages failed to restore
Finishing: NuGetCommand

无论如何省略它， dotnet restore都会失败。

脚本installcredprovider.ps1的来源在这里。

可以从这里下载存储库（Feed URL 被部分混淆）。

提前感谢任何想提供帮助的人！

Answer 1

我创建了一个用于故障排除的测试项目。 我发现Paket需要.NET Core sdk 2.0.0 。

如果未安装 dotnet core 2.0.0，Nuget 恢复任务将失败，并出现上述错误"It was not possible to find any compatible framework version" 。 并且 paket retore 任务将失败并出现错误The framework 'Microsoft.NETCore.App', version '2.0.0' was not found.

在我使用UseDotNet任务安装.NET Core sdk 2.0.0后。 Nuget 恢复和 paket 恢复都成功运行。 请查看以下 yaml：

pool:
  vmImage: 'windows-latest'

steps:

  - task: UseDotNet@2
    inputs:
      packageType: 'sdk'
      version: '2.0.0'

  - task: UseDotNet@2
    inputs:
      packageType: 'sdk'
      version: '3.1.x'

  - powershell: |
      cd ..
      dotnet tool install -g paket

  - task: setCredentialManager@0

  - task: PaketRestore@0
    inputs:
      PaketPath: '.paket'

  - task: paketCredentialCleanup@0

  # - task: PowerShell@2
  #   inputs:
  #     filePath: './installcredprovider.ps1'

  # - task: NuGetToolInstaller@1
  #   inputs:
  #     versionSpec: 5.x

  - task: NuGetCommand@2
    inputs:
      command: 'restore'
      restoreSolution: '**/*.sln'
      feedsToUse: 'config'
      nugetConfigPath: './NuGet.config'

对于上述管道，任务setCredentialManager@0也是必须的，但不需要运行./installcredprovider.ps1的 powershell 任务。

而且我还发现上面的管道将无法在代理 vs2017-win2016 上运行，因为在执行 nuget 恢复命令时调用 vs2017 中的旧版本 msbuild。

Paket restore、dotnet restore 和 nuget restore 它们都做同样的事情（dotnet restore 和 nuget restore 将调用 paket restore）。 您只能将其中一个保留在您的管道中。 我进行了测试，我的项目使用其中任何一个都成功构建了。

以上希望有帮助！