Azure Pipelines构建报错NU1202：包版本与.NET 6不兼容求助

问题背景 #

我是Azure DevOps新手，希望通过Azure Pipelines构建项目，我的YAML配置如下：

- task: JFrogToolsInstaller@1
  displayName: 'Installation de JFrogTools'
  inputs:
    artifactoryConnection: 'JFrog-V2'
    cliInstallationRepo: 'jfrogcliv2'

- task: JFrogNuGet@1
  displayName: 'JfrogNuget Restore'
  inputs:
    command: 'restore'
    artifactoryConnection: 'JFrog-V2'
    targetResolveRepo: 'nuget-remote'
    solutionPath: '$(Build.SourcesDirectory)/$(Project_name)/xxx.xxx.sln'
    collectBuildInfo: true
    buildName: '$(Build.DefinitionName)'
    buildNumber: '$(Build.BuildNumber)'

- task: DotNetCoreCLI@2
  displayName: 'Restore .NET Core'
  inputs:
    command: 'restore'
    projects: '**/*.csproj'
    feedsToUse: 'select'
    includeNuGetOrg: false

- task: DotNetCoreCLI@2
  displayName: 'Build'
  inputs:
    command: 'build'
    projects: '**/*.csproj'
    arguments: '--configuration Release'

当前执行时出现如下错误：

Exécution de la tâche "RestoreTask" terminée -- ÉCHEC.
     1>Génération de la cible "Restore" terminée dans le projet "xxxxx.Caching.csproj" -- ÉCHEC.
     1>Génération du projet "C:\DevOpsAgent\_work\385\s\xxxxxx\xxxxx.Caching\xxxx.Caching.csproj" terminée (Restore cible(s)) -- ÉCHEC.

ÉCHEC de la build.

       "C:\DevOpsAgent\_work\385\s\xxxxxx\xxxxx.Caching\xxxxx.Caching.csproj" (Restore cible) (1) ->
       (Restore cible) -> 
         C:\DevOpsAgent\_work\385\s\xxxxx\xxxxx.Caching\xxxxx.Caching.csproj : error NU1202: The package Microsoft.AspNetCore.SpaServices 3.1.29 it's not compatible with net60 (.NETFramework,Version=v6.0). The package Microsoft.AspNetCore.SpaServices 3.1.29 supports : netcoreapp3.1 (.NETCoreApp,Version=v3.1)

    0 Avertissement(s)
    1 Erreur(s)

Temps écoulé 00:00:01.32
##[debug]Exit code 1 received from tool 'C:\Program Files\dotnet\dotnet.exe'
##[debug]STDIO streams have closed for tool 'C:\Program Files\dotnet\dotnet.exe'
##[error]Error: The process 'C:\Program Files\dotnet\dotnet.exe' failed with exit code 1
##[debug]Processed: ##vso[task.issue type=error;]Error: The process 'C:\Program Files\dotnet\dotnet.exe' failed with exit code 1
##[debug]task result: Failed
##[error]Packages failed to restore
##[debug]Processed: ##vso[task.issue type=error;]Packages failed to restore
##[debug]Processed: ##vso[task.complete result=Failed;]Packages failed to restore

我添加了额外任务但构建仍然失败，请问该如何解决？

解决方案 #

1. 修复包兼容性问题 #

错误核心是Microsoft.AspNetCore.SpaServices 3.1.29仅支持.NET Core 3.1，但你的项目目标框架是.NET 6，按以下步骤处理：

• 打开xxxxx.Caching.csproj文件，确认TargetFramework节点值为net6.0
• 卸载旧的Microsoft.AspNetCore.SpaServices包，安装兼容.NET 6的替代包：.NET 6官方推荐使用Microsoft.AspNetCore.SpaServices.Extensions（选择6.0.x系列版本）

2. 优化Pipeline任务配置 #

当前YAML存在重复还原任务（JFrogNuGet Restore和DotNetCoreCLI Restore），易引发冲突，调整如下：

• 保留JFrogNuGet@1的还原任务，移除DotNetCoreCLI@2的Restore任务
• 在Build任务中添加--no-restore参数，避免自动触发还原，确保使用JFrog完成的还原结果

调整后的YAML示例：

- task: JFrogToolsInstaller@1
  displayName: 'Installation de JFrogTools'
  inputs:
    artifactoryConnection: 'JFrog-V2'
    cliInstallationRepo: 'jfrogcliv2'

- task: JFrogNuGet@1
  displayName: 'JfrogNuget Restore'
  inputs:
    command: 'restore'
    artifactoryConnection: 'JFrog-V2'
    targetResolveRepo: 'nuget-remote'
    solutionPath: '$(Build.SourcesDirectory)/$(Project_name)/xxx.xxx.sln'
    collectBuildInfo: true
    buildName: '$(Build.DefinitionName)'
    buildNumber: '$(Build.BuildNumber)'

- task: DotNetCoreCLI@2
  displayName: 'Build'
  inputs:
    command: 'build'
    projects: '**/*.csproj'
    arguments: '--configuration Release --no-restore'

3. 验证代理环境的.NET版本 #

确保Azure DevOps代理已安装.NET 6 SDK，可在Pipeline开头添加检查任务：

- task: UseDotNet@2
  displayName: '使用.NET 6 SDK'
  inputs:
    packageType: 'sdk'
    version: '6.x'

内容的提问来源于stack exchange，提问作者xfusion