Jenkins Linux:找不到回退包文件夹'；C:\Program Files\dotnet\sdk\NuGetFallbackFolder'；

我有一个使用Dotnet Core Web API V3.1构建的Ocelot网关服务示例。我在Windows机器上使用“dotnet clean和dotnet build”构建了解决方案，效果很好。我正试图通过Jenkins在Ubuntu18.04LTS机器上做同样的事情，这导致了下面的问题

/usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018: The "ResolvePackageAssets" task failed unexpectedly. [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
/usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018: NuGet.Packaging.Core.PackagingException: Unable to find fallback package folder 'C:\Program Files\dotnet\sdk\NuGetFallbackFolder'. [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
/usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at NuGet.Packaging.FallbackPackagePathResolver..ctor(String userPackageFolder, IEnumerable`1 fallbackPackageFolders) [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
/usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.NET.Build.Tasks.NuGetPackageResolver.CreateResolver(IEnumerable`1 packageFolders) [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
/usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.NET.Build.Tasks.NuGetPackageResolver.CreateResolver(LockFile lockFile) [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
/usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.NET.Build.Tasks.ResolvePackageAssets.CacheWriter..ctor(ResolvePackageAssets task) [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
/usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.NET.Build.Tasks.ResolvePackageAssets.CacheReader.CreateReaderFromDisk(ResolvePackageAssets task, Byte[] settingsHash) [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
/usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.NET.Build.Tasks.ResolvePackageAssets.CacheReader..ctor(ResolvePackageAssets task) [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
/usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.NET.Build.Tasks.ResolvePackageAssets.ReadItemGroups() [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
/usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.NET.Build.Tasks.ResolvePackageAssets.ExecuteCore() [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
/usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.NET.Build.Tasks.TaskBase.Execute() [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
/usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute() [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
/usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.Build.BackEnd.TaskBuilder.ExecuteInstantiatedTask(ITaskExecutionHost taskExecutionHost, TaskLoggingContext taskLoggingContext, TaskHost taskHost, ItemBucket bucket, TaskExecutionMode howToExecuteTask) [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
     1>Done Building Project "/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj" (Clean target(s)) -- FAILED.

Build FAILED.

       "/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj" (Clean target) (1) ->
       (ResolvePackageAssets target) ->
         /usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018: The "ResolvePackageAssets" task failed unexpectedly. [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
       /usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018: NuGet.Packaging.Core.PackagingException: Unable to find fallback package folder 'C:\Program Files\dotnet\sdk\NuGetFallbackFolder'. [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
       /usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at NuGet.Packaging.FallbackPackagePathResolver..ctor(String userPackageFolder, IEnumerable`1 fallbackPackageFolders) [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
       /usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.NET.Build.Tasks.NuGetPackageResolver.CreateResolver(IEnumerable`1 packageFolders) [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
       /usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.NET.Build.Tasks.NuGetPackageResolver.CreateResolver(LockFile lockFile) [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
       /usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.NET.Build.Tasks.ResolvePackageAssets.CacheWriter..ctor(ResolvePackageAssets task) [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
       /usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.NET.Build.Tasks.ResolvePackageAssets.CacheReader.CreateReaderFromDisk(ResolvePackageAssets task, Byte[] settingsHash) [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
       /usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.NET.Build.Tasks.ResolvePackageAssets.CacheReader..ctor(ResolvePackageAssets task) [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
       /usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.NET.Build.Tasks.ResolvePackageAssets.ReadItemGroups() [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
       /usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.NET.Build.Tasks.ResolvePackageAssets.ExecuteCore() [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
       /usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.NET.Build.Tasks.TaskBase.Execute() [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
       /usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute() [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]
       /usr/share/dotnet/sdk/3.1.102/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(234,5): error MSB4018:    at Microsoft.Build.BackEnd.TaskBuilder.ExecuteInstantiatedTask(ITaskExecutionHost taskExecutionHost, TaskLoggingContext taskLoggingContext, TaskHost taskHost, ItemBucket bucket, TaskExecutionMode howToExecuteTask) [/var/lib/jenkins/workspace/GatewaySample_SERVICE/GatewaySample/GatewaySample.csproj]

请让我知道我错过了什么

注意：我有另一台linux机器，在那里我有相同的设置（但是Dotnet Core V2.2），我可以通过Jenkins构建API

PS：下面是来自.csproj的内容

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>netcoreapp3.1</TargetFramework>
    <RootNamespace>GatewaySample_SERVICE</RootNamespace>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="IdentityServer4.AccessTokenValidation" Version="3.0.1" />
    <PackageReference Include="Ocelot" Version="14.0.11" />
  </ItemGroup>

</Project>

netcoreapp3.1
网关抽样服务

从Windows环境迁移到WSL环境时，我遇到了类似的问题。
我在项目文件中没有找到任何对丢失目录的引用，因此我在整个项目目录层次结构中搜索了回退插件文件夹引用，只在bin/和obj/文件夹中找到了它。

---

从项目中删除所有bin/和obj/文件夹后，我能够在WSL下构建它们。

.netcore3.x。那台机器可能是离线的吗？正如问题的答案所解释的，您必须将其联机并至少恢复一次步骤：您的csproj看起来像什么？@PanagiotisKanavosThank谢谢您的回复。机器在线。下面是我的csproj文件

netcoreapp3.1网关示例_服务

在问题中发布此内容，只是补充说这仍然是.NET 5.0的一个问题