詹金斯无法从dl.google.com / maven.google.com

Question

Jenkins无法从dl.google.com/maven.google.com下载xamarin依赖项

下载失败原因：无法连接到远程服务器

项目堆栈 Dotnet Xamarin android应用程序

错误

 Downloading https://dl.google.com/dl/android/maven2/com/google/firebase/firebase-core/16.0.1/firebase-core-16.0.1.aar to C:\Windows\system32\config\systemprofile\AppData\Local\XamarinBuildDownloadCache\googlefb-16.0.1/firebasecore.aar
C:\Windows\system32\config\systemprofile\.nuget\packages\xamarin.build.download\0.8.0\build\Xamarin.Build.Download.targets(52,3): error XBD001: Download failed. Please download https://dl.google.com/dl/android/maven2/com/google/firebase/firebase-core/16.0.1/firebase-core-16.0.1.aar to a file called C:\Windows\system32\config\systemprofile\AppData\Local\XamarinBuildDownloadCache\googlefb-16.0.1/firebasecore.aar. [D:\myfolder\Jenkins\workspace\projectname\project\project.Android\project.Android.csproj]
  Download failure reason: Unable to connect to the remote server
    Downloading https://maven.google.com/com/crashlytics/sdk/android/crashlytics-core/2.6.3/crashlytics-core-2.6.3.aar to C:\Windows\system32\config\systemprofile\AppData\Local\XamarinBuildDownloadCache\crashlyticscore-2.6.3.aar
C:\Windows\system32\config\systemprofile\.nuget\packages\xamarin.build.download\0.8.0\build\Xamarin.Build.Download.targets(52,3): error XBD001: Download failed. Please download https://maven.google.com/com/crashlytics/sdk/android/crashlytics-core/2.6.3/crashlytics-core-2.6.3.aar to a file called C:\Windows\system32\config\systemprofile\AppData\Local\XamarinBuildDownloadCache\crashlyticscore-2.6.3.aar. [D:\myfolder\Jenkins\workspace\projectname\project\project.Android\project.Android.csproj]
  Download failure reason: Unable to connect to the remote server

我尝试在Jenkins中配置公司代理。它可以在代理配置页面上运行，但在构建代码时会引发错误。请参见下面的屏幕截图。