c# - 使用新的 VS2019 代理构建 PCL 库失败？

Question

如果我将 AzureDevOps CI 通道从Hosted VS2017代理切换到Hosted Windows 2019 with VS2019代理，构建会中断：

##[section]Starting: PowerShell Script
==============================================================================
Task         : PowerShell
Description  : Run a PowerShell script on Windows, macOS, or Linux.
Version      : 2.140.2
Author       : Microsoft Corporation
Help         : [More Information](https://go.microsoft.com/fwlink/?LinkID=613736)
==============================================================================
Generating script.
Formatted command: . 'd:\a\1\s\build.ps1'
##[command]"C:\windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoLogo -NoProfile -NonInteractive -ExecutionPolicy Unrestricted -Command ". 'd:\a\_temp\23906d3e-3711-4e1b-8106-8a59074e5e3c.ps1'"
Preparing to run build script...
Running build script...
Could not load D:\a\1\s\tools\Addins\Cake.SemVer.3.0.0\lib\netstandard2.0\Cake.SemVer.dll (missing Semver, Version=2.0.4.0, Culture=neutral, PublicKeyToken=null))

========================================
libs
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MSBuild auto-detection: using msbuild version '16.0.360.33175' from 'C:\Program Files (x86)\Microsoft Visual Studio\2019\Preview\MSBuild\Current\bin'.
##[error]Cake.exe : D:\a\1\s\Source\ZXing.Net\Source\lib\zxing.portable.csproj(341,11): error MSB4226: The imported project 
##[error]"C:\Program Files (x86)\Microsoft Visual 
Studio\2019\Preview\MSBuild\Microsoft\Portable\v4.5\Microsoft.Portable.CSharp.targets" was not found. Also, tried to 
find "Microsoft\Portable\v4.5\Microsoft.Portable.CSharp.targets" in the fallback search path(s) for 

##[error]$(MSBuildExtensionsPath32) - "C:\Program Files (x86)\MSBuild" . These search paths are defined in "C:\Program Files 

##[error](x86)\Microsoft Visual Studio\2019\Preview\MSBuild\Current\bin\msbuild.exe.Config". Confirm that the path in the 

##[error]<Import> declaration is correct, and that the file exists on disk in one of the search paths.

##[error]At D:\a\1\s\build.ps1:233 char:1

##[error]+ &$CAKE_EXE $cakeArguments

##[error]+ ~~~~~~~~~~~~~~~~~~~~~~~~~

##[error]    + CategoryInfo          : NotSpecified: (D:\a\1\s\Source...e search paths.:String) [], RemoteException

##[error]    + FullyQualifiedErrorId : NativeCommandError

##[error] 

##[error]PowerShell exited with code '1'.
##[section]Finishing: PowerShell Script

CI 正在尝试从 github 构建这个开源项目dev的分支。

这是否意味着 VS2019 现在不支持构建 PCL 项目了？有什么修复建议吗？

标签： c#.netmsbuildazure-devopsportable-class-library

Answer 1

这是否意味着 VS2019 现在不支持构建 PCL 项目了？有什么修复建议吗？

根据Visual Studio 2019 Preview 的文档项目迁移和升级参考：

因此，Visual Studio 2019 仍然支持构建 PCL 项目。

出现此问题的原因是 Hosted Windows 2019 with VS2019 agent.NET Portable Library targeting pack默认不安装组件：

您可以查看Visual Studio 2019 Enterprise以了解更多详细信息。

要解决此问题，您可以创建私有代理并安装该组件。

希望这可以帮助。