在VSTS中构建的F＃项目中无法解析对NuGet包的引用

时间：2017-05-24 20:20:13

标签： f# visual-studio-2017 azure-pipelines

使用Visual Studio 2017社区我已经创建了一个解决方案，其中包含针对.NET 4.5.2框架和F＃4.1（FSharp.Core，4.4.1.0）运行时的F＃库项目（常规，而不是PCL）。 Visual Studio默认为我添加了对System.ValueType（4.3.0）的NuGet引用。

此项目中唯一使用System.ValueType的代码：

type TupleCreator() =
  member this.Create x = 
    System.ValueTuple.Create(x)

在本地构建项目工作正常，遗憾的是VSTS并非如此。我有一个构建定义（默认代理队列设置为Hosted VS2017），具有NuGet还原步骤和构建解决方案步骤（Visual Studio版本设置为最新）。

当构建运行时，它成功恢复了nuget包：

##[section]Starting: NuGet restore **\*.sln
=================================================================
Task         : NuGet Installer
Description  : Installs or restores missing NuGet packages
Version      : 0.2.31
Author       : Microsoft Corporation
=================================================================
[command]C:\Windows\system32\chcp.com 65001
Active code page: 65001
Detected NuGet version 3.3.0.212 / 3.3.0
SYSTEMVSSCONNECTION exists true
To connect to NuGet feeds hosted in your Team Services account/TFS project collection on this build agent, edit your build definition to choose a higher version of nuget or specify a path to a NuGet.config containing the package sources you wish to use.
[command]d:\a\_tasks\NuGetInstaller_333b11bd-d341-40d9-afcf-b32d5ce6f23b\0.2.31\node_modules\nuget-task-common\NuGet\3.3.0\NuGet.exe restore -NonInteractive d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\FSharpWithNugetDemo.sln
MSBuild auto-detection: using msbuild version '4.0' from 'C:\Windows\Microsoft.NET\Framework\v4.0.30319'.
Feeds used:
  C:\Users\buildguest\AppData\Local\NuGet\Cache
  https://api.nuget.org/v3/index.json
Restoring NuGet package System.ValueTuple.4.3.0.
Adding package 'System.ValueTuple.4.3.0' to folder 'd:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\packages'
Added package 'System.ValueTuple.4.3.0' to folder 'd:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\packages'
##[section]Finishing: NuGet restore **\*.sln

然后，构建步骤将生成以下日志：

##[section]Starting: Build solution $/tfs1/Apps/Sandbox/FSharpWithNugetDemo/FSharpWithNugetDemo.sln
==============================================================================
Task         : Visual Studio Build
Description  : Build with MSBuild and set the Visual Studio version property
Version      : 1.117.0
Author       : Microsoft Corporation
Help         : [More Information](https://go.microsoft.com/fwlink/?LinkID=613727)
==============================================================================
##[command]"D:\a\_tasks\VSBuild_71a9a2d3-a98a-4caa-96ab-affca411ecda\1.117.0\ps_modules\MSBuildHelpers\vswhere.exe" -version [15.0,15.1) -latest -format json
##[command]"C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\msbuild.exe" "d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\FSharpWithNugetDemo.sln" /nologo /nr:false /dl:CentralLogger,"D:\a\_tasks\VSBuild_71a9a2d3-a98a-4caa-96ab-affca411ecda\1.117.0\ps_modules\MSBuildHelpers\Microsoft.TeamFoundation.DistributedTask.MSBuild.Logger.dll";"RootDetailId=d08ecee6-b628-4743-9e80-d31a64026956|SolutionDir=d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo"*ForwardingLogger,"D:\a\_tasks\VSBuild_71a9a2d3-a98a-4caa-96ab-affca411ecda\1.117.0\ps_modules\MSBuildHelpers\Microsoft.TeamFoundation.DistributedTask.MSBuild.Logger.dll" /p:TreatWarningsAsErrors=False /p:platform="any cpu" /p:configuration="debug" /p:VisualStudioVersion="15.0" /p:_MSDeployUserAgent="VSTS_1e91f890-819e-4329-aa62-069b62ae16d0_build_4_116"
Building the projects in this solution one at a time. To enable parallel build, please add the "/m" switch.
Build started 5/24/2017 6:32:52 PM.
Project "d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\FSharpWithNugetDemo.sln" on node 1 (default targets).
ValidateSolutionConfiguration:
  Building solution configuration "debug|any cpu".
Project "d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\FSharpWithNugetDemo.sln" (1) is building "d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\FSharpWithNugetDemo.fsproj" (2) on node 1 (default targets).
PrepareForBuild:
  Creating directory "bin\Debug\".
  Creating directory "obj\Debug\".
ResolveAssemblyReferences:
  Primary reference "System.ValueTuple".
##[warning]C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\Microsoft.Common.CurrentVersion.targets(1964,5): Warning MSB3245: Could not resolve this reference. Could not locate the assembly "System.ValueTuple". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.
C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\Microsoft.Common.CurrentVersion.targets(1964,5): warning MSB3245: Could not resolve this reference. Could not locate the assembly "System.ValueTuple". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors. [d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\FSharpWithNugetDemo.fsproj]
          For SearchPath "{HintPathFromItem}".
          Considered "..\..\Sandbox (local)\packages\System.ValueTuple.4.3.0\lib\netstandard1.0\System.ValueTuple.dll", but it didn't exist.
          For SearchPath "{TargetFrameworkDirectory}".
          Considered "C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.ValueTuple.winmd", but it didn't exist.
          Considered "C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.ValueTuple.dll", but it didn't exist.
          Considered "C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.ValueTuple.exe", but it didn't exist.
          .
          .
          .
          Considered "bin\Debug\System.ValueTuple.exe", but it didn't exist.
CoreCompile:
  C:\Program Files (x86)\Microsoft SDKs\F#\4.1\Framework\v4.0\fsc.exe -o:obj\Debug\FSharpWithNugetDemo.dll
  -g
  --debug:full
  --noframework
  --define:DEBUG
  --define:TRACE
  --doc:bin\Debug\FSharpWithNugetDemo.XML
  --optimize-
  --tailcalls-
  -r:C:\Program Files (x86)\Reference Assemblies\Microsoft\FSharp\.NETFramework\v4.0\4.4.1.0\FSharp.Core.dll
  -r:C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\mscorlib.dll
  -r:C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.Core.dll
  -r:C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.dll
  -r:C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.Numerics.dll
  --target:library
  --warn:3
  --warnaserror:76
  --fullpaths
  --flaterrors
  --subsystemversion:6.00
  --highentropyva+
  d:\a\_temp\.NETFramework,Version=v4.5.2.AssemblyAttributes.fs
  AssemblyInfo.fs
  Library1.fs
##[error]Apps\Sandbox\FSharpWithNugetDemo\Library1.fs(5,12): Error FS0039: The value, constructor, namespace or type 'ValueTuple' is not defined. Maybe you want one of the following:   ValueType
d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\Library1.fs(5,12): error FS0039: The value, constructor, namespace or type 'ValueTuple' is not defined. Maybe you want one of the following:   ValueType [d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\FSharpWithNugetDemo.fsproj]
Done Building Project "d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\FSharpWithNugetDemo.fsproj" (default targets) -- FAILED.
Done Building Project "d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\FSharpWithNugetDemo.sln" (default targets) -- FAILED.

Build FAILED.

"d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\FSharpWithNugetDemo.sln" (default target) (1) ->
"d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\FSharpWithNugetDemo.fsproj" (default target) (2) ->
(ResolveAssemblyReferences target) -> 
  C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\Microsoft.Common.CurrentVersion.targets(1964,5): warning MSB3245: Could not resolve this reference. Could not locate the assembly "System.ValueTuple". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors. [d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\FSharpWithNugetDemo.fsproj]

"d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\FSharpWithNugetDemo.sln" (default target) (1) ->
"d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\FSharpWithNugetDemo.fsproj" (default target) (2) ->
(CoreCompile target) -> 
  d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\Library1.fs(5,12): error FS0039: The value, constructor, namespace or type 'ValueTuple' is not defined. Maybe you want one of the following:   ValueType [d:\a\3\s\Apps\Sandbox\FSharpWithNugetDemo\FSharpWithNugetDemo.fsproj]

    1 Warning(s)
    1 Error(s)

Time Elapsed 00:00:06.14
##[error]Process 'msbuild.exe' exited with code '1'.

这不是System.ValueType的问题，因为构建过程无法使用对任何nuget包的引用进行构建。这也不是我的VSTS的问题，因为我的带有NuGet引用的C＃项目构建得很好。

我的F＃项目有什么问题？是否需要采取其他步骤才能在VSTS上的F＃项目中启用NuGet？

修改

我只是将CoreCompile部分的输出与Visual Studio中打印的内容进行了比较。在Visual Studio中它说：

C:\Program Files (x86)\Microsoft SDKs\F#\4.1\Framework\v4.0\fsc.exe -o:obj\Debug\FSharpWithNugetDemo.dll
-g
--debug:full
--noframework
--define:DEBUG
--define:TRACE
--doc:bin\Debug\FSharpWithNugetDemo.XML
--optimize-
--tailcalls-
-r:C:\Program Files (x86)\Reference Assemblies\Microsoft\FSharp\.NETFramework\v4.0\4.4.1.0\FSharp.Core.dll
-r:C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\mscorlib.dll
-r:C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.Core.dll
-r:C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.dll
-r:C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.Numerics.dll
-r:D:\Projects\Sandbox\packages\System.ValueTuple.4.3.0\lib\netstandard1.0\System.ValueTuple.dll
.
.
.
--target:library
--warn:3
--warnaserror:76
--vserrors
--utf8output
--fullpaths
--flaterrors
--subsystemversion:6.00
--highentropyva+
C:\Users\David\AppData\Local\Temp\.NETFramework,Version=v4.5.2.AssemblyAttributes.fs
AssemblyInfo.fs
Library1.fs
FSharpWithNugetDemo -> D:\Projekte\VisualStudio.com\sphereutfs\Dev\Apps\Sandbox\FSharpWithNugetDemo\bin\Debug\FSharpWithNugetDemo.dll

不同之处在于，有一条-r:行，其中包含从NuGet获取的System.ValueTuple.dll的路径，该路径在VSTS构建的日志中缺失。如何在编译时告诉VSTS构建包含此引用？

1 个答案:

答案 0 :(得分：1)

这会导致 FSharpWithNugetDemo.fsproj 文件中的设置。您将System.ValueTuple的路径设置为本地路径：

<Reference Include="System.ValueTuple">
  <HintPath>..\..\Sandbox (local)\packages\System.ValueTuple.4.3.0\lib\netstandard1.0\System.ValueTuple.dll</HintPath>
</Reference>

应该使用关联路径，这样当它由VSTS构建时，System.ValueTuple将会在$(build.sourcesdirectory)中搜索：

<Reference Include="System.ValueTuple">
  <HintPath>..\packages\System.ValueTuple.4.3.0\lib\netstandard1.0\System.ValueTuple.dll</HintPath>
</Reference>
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