NuGet Installer no longer works

I have a build definition that has stopped working due to a 401 when trying to restore packages from a Package management feed for the project. This hs stopped working randomly over the weekend, and I have tried the new version (1.0) of the NuGet Installer task, but still same issue.

Any help appreciated, as this is an urgently needed fix!

Below is the exception:

2017-05-15T12:43:12.6322835Z ##[section]Starting: Restore NuGet Packages 2017-05-15T12:43:12.6322835Z ============================================================================== 2017-05-15T12:43:12.6322835Z Task : NuGet Restore 2017-05-15T12:43:12.6322835Z Description : Restores NuGet packages in preparation for a Visual Studio Build step. 2017-05-15T12:43:12.6322835Z Version : 1.0.0 2017-05-15T12:43:12.6322835Z Author : Microsoft Corporation 2017-05-15T12:43:12.6322835Z Help : More Information 2017-05-15T12:43:12.6322835Z ============================================================================== 2017-05-15T12:43:13.7924324Z [command]C:\Windows\system32\chcp.com 65001 2017-05-15T12:43:13.8128292Z Active code page: 65001 2017-05-15T12:43:14.3374496Z Downloading: https://dist.nuget.org/win-x86-commandline/v4.0.0/nuget.exe 2017-05-15T12:43:14.4389254Z Caching tool: NuGet 4.0.0 x64 2017-05-15T12:43:14.4538759Z Using version: 4.0.0 2017-05-15T12:43:14.4538759Z Found tool in cache: NuGet 4.0.0 x64 2017-05-15T12:43:14.4838754Z Detected NuGet version 4.0.0.2283 / 4.0.0 2017-05-15T12:43:14.4858757Z SYSTEMVSSCONNECTION exists true 2017-05-15T12:43:14.7596804Z save nuget.config to temp config file 2017-05-15T12:43:14.7596804Z Preparing to set credentials in NuGet.config 2017-05-15T12:43:14.7646788Z [command]d:\a_tool\NuGet\4.0.0\x64\nuget.exe sources Remove -NonInteractive -Name 245db6c8-7388-4394-a847-511b8116f00e -ConfigFile d:\a\1\Nuget\tempNuGet_462.config 2017-05-15T12:43:15.8193943Z Unable to find any package source(s) matching name: 245db6c8-7388-4394-a847-511b8116f00e. 2017-05-15T12:43:15.8214191Z [command]d:\a_tool\NuGet\4.0.0\x64\nuget.exe sources Remove -NonInteractive -Name NuGetOrg -ConfigFile d:\a\1\Nuget\tempNuGet_462.config 2017-05-15T12:43:16.3243942Z Unable to find any package source(s) matching name: NuGetOrg. 2017-05-15T12:43:16.3243942Z Setting credentials in NuGet.config 2017-05-15T12:43:16.3303955Z [command]d:\a_tool\NuGet\4.0.0\x64\nuget.exe sources Add -NonInteractive -Name 245db6c8-7388-4394-a847-511b8116f00e -Source https://PROJECT_NAME.pkgs.visualstudio.com/_packaging/245db6c8-7388-4394-a847-511b8116f00e/nuget/v3/index.json -ConfigFile d:\a\1\Nuget\tempNuGet_462.config 2017-05-15T12:43:16.8843953Z Package Source with Name: 245db6c8-7388-4394-a847-511b8116f00e added successfully. 2017-05-15T12:43:16.8863942Z [command]d:\a_tool\NuGet\4.0.0\x64\nuget.exe sources Add -NonInteractive -Name NuGetOrg -Source https://api.nuget.org/v3/index.json -ConfigFile d:\a\1\Nuget\tempNuGet_462.config 2017-05-15T12:43:17.4433942Z Package Source with Name: NuGetOrg added successfully. 2017-05-15T12:43:17.4453976Z [command]d:\a_tool\NuGet\4.0.0\x64\nuget.exe restore d:\a\1\s\PROJECT_NAME.Framework.sln -NoCache -Verbosity Detailed -NonInteractive -ConfigFile d:\a\1\Nuget\tempNuGet_462.config 2017-05-15T12:43:17.9383960Z NuGet Version: 4.0.0.2283 2017-05-15T12:43:18.4590379Z MSBuild auto-detection: using msbuild version ‘15.1.1012.6693’ from ‘C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\bin’. Use option -MSBuildVersion to force nuget to use a specific version of MSBuild. 2017-05-15T12:43:18.6569474Z MSBuild P2P timeout [ms]: 120000 2017-05-15T12:43:18.6719477Z C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\bin\msbuild.exe /t:GenerateRestoreGraphFile /nologo /nr:false /p:RestoreUseCustomAfterTargets=true /p:BuildProjectReferences=false /v:q /p:NuGetRestoreTargets=“d:\a_temp\NuGet-Scratch\x5m2uixg.lx0.targets” /p:RestoreTaskAssemblyFile=“d:\a_tool\NuGet\4.0.0\x64\nuget.exe” /p:RestoreGraphOutputPath=“d:\a_temp\NuGet-Scratch\oozooso2.xon.result” /p:ExcludeRestorePackageImports=true /p:RestoreRecursive=False /p:RestoreProjectFilterMode=exclusionlist /p:RestoreContinueOnError=WarnAndContinue /p:RestoreGraphProjectInput=“d:\a\1\s\src\PROJECT_NAME.Core\PROJECT_NAME.Core.csproj;d:\a\1\s\tests\PROJECT_NAME.Core.UnitTests\PROJECT_NAME.Core.UnitTests.csproj;d:\a\1\s\src\PROJECT_NAME.TypeMapping.Core\PROJECT_NAME.TypeMapping.Core.csproj;d:\a\1\s\tests\PROJECT_NAME.TypeMapping.Core.UnitTests\PROJECT_NAME.TypeMapping.Core.UnitTests.csproj;d:\a\1\s\src\PROJECT_NAME.TypeMapping.AutoMapper\PROJECT_NAME.TypeMapping.AutoMapper.csproj;d:\a\1\s\tests\PROJECT_NAME.TypeMapping.AutoMapper.UnitTests\PROJECT_NAME.TypeMapping.AutoMapper.UnitTests.csproj;d:\a\1\s\tests\PROJECT_NAME.AspNetCore.Swashbuckle.Swagger.AutoRest.UnitTests\PROJECT_NAME.AspNetCore.Swashbuckle.Swagger.AutoRest.UnitTests.csproj;d:\a\1\s\src\PROJECT_NAME.AspNetCore.Swashbuckle.Swagger.AutoRest\PROJECT_NAME.AspNetCore.Swashbuckle.Swagger.AutoRest.csproj;d:\a\1\s\src\PROJECT_NAME.Automation.PageObjectModel.Selenium\PROJECT_NAME.Automation.PageObjectModel.Selenium.csproj;d:\a\1\s\src\PROJECT_NAME.Automation.PageObjectModel.Core\PROJECT_NAME.Automation.PageObjectModel.Core.csproj;d:\a\1\s\tests\PROJECT_NAME.Automation.PageObjectModel.Core.UnitTests\PROJECT_NAME.Automation.PageObjectModel.Core.UnitTests.csproj;d:\a\1\s\tests\PROJECT_NAME.Automation.PageObjectModel.Selenium.UnitTests\PROJECT_NAME.Automation.PageObjectModel.Selenium.UnitTests.csproj;” “d:\a_temp\NuGet-Scratch\x5m2uixg.lx0.targets” 2017-05-15T12:43:25.0324253Z Running restore with 2 concurrent jobs. 2017-05-15T12:43:25.0334251Z Reading project file d:\a\1\s\src\PROJECT_NAME.AspNetCore.Swashbuckle.Swagger.AutoRest\PROJECT_NAME.AspNetCore.Swashbuckle.Swagger.AutoRest.csproj. 2017-05-15T12:43:25.0334251Z Reading project file d:\a\1\s\src\PROJECT_NAME.Automation.PageObjectModel.Core\PROJECT_NAME.Automation.PageObjectModel.Core.csproj. 2017-05-15T12:43:25.0334251Z Restoring packages for d:\a\1\s\src\PROJECT_NAME.Automation.PageObjectModel.Core\PROJECT_NAME.Automation.PageObjectModel.Core.csproj… 2017-05-15T12:43:25.0334251Z Restoring packages for d:\a\1\s\src\PROJECT_NAME.AspNetCore.Swashbuckle.Swagger.AutoRest\PROJECT_NAME.AspNetCore.Swashbuckle.Swagger.AutoRest.csproj… 2017-05-15T12:43:25.0334251Z Restoring packages for .NETFramework,Version=v4.6.1… 2017-05-15T12:43:25.0334251Z Restoring packages for .NETStandard,Version=v1.6… 2017-05-15T12:43:25.0334251Z CredentialProvider.TeamBuild: “d:\a_tasks\NuGetRestore_333b11bd-d341-40d9-afcf-b32d5ce6f23b\1.0.0\node_modules\nuget-task-common\NuGet\CredentialProvider\CredentialProvider.TeamBuild.exe” -uri https://PROJECT_NAME.pkgs.visualstudio.com/_packaging/245db6c8-7388-4394-a847-511b8116f00e/nuget/v3/index.json -nonInteractive -verbosity detailed 2017-05-15T12:43:25.0334251Z CredentialProvider.TeamBuild: URI Prefixes: 2017-05-15T12:43:25.0334251Z CredentialProvider.TeamBuild: https://PROJECT_NAME.visualstudio.com/ 2017-05-15T12:43:25.0334251Z CredentialProvider.TeamBuild: https://PROJECT_NAME.pkgs.visualstudio.com/ 2017-05-15T12:43:25.0334251Z CredentialProvider.TeamBuild: URI: https://PROJECT_NAME.pkgs.visualstudio.com/_packaging/245db6c8-7388-4394-a847-511b8116f00e/nuget/v3/index.json 2017-05-15T12:43:25.0334251Z CredentialProvider.TeamBuild: Is retry: False 2017-05-15T12:43:25.0334251Z CredentialProvider.TeamBuild: Matched prefix: https://PROJECT_NAME.pkgs.visualstudio.com/ 2017-05-15T12:43:25.4584254Z CredentialProvider.TeamBuild: “d:\a_tasks\NuGetRestore_333b11bd-d341-40d9-afcf-b32d5ce6f23b\1.0.0\node_modules\nuget-task-common\NuGet\CredentialProvider\CredentialProvider.TeamBuild.exe” -uri https://PROJECT_NAME.pkgs.visualstudio.com/_packaging/245db6c8-7388-4394-a847-511b8116f00e/nuget/v3/index.json -isRetry -nonInteractive -verbosity detailed 2017-05-15T12:43:25.4594251Z CredentialProvider.TeamBuild: URI Prefixes: 2017-05-15T12:43:25.4594251Z CredentialProvider.TeamBuild: https://PROJECT_NAME.visualstudio.com/ 2017-05-15T12:43:25.4594251Z CredentialProvider.TeamBuild: https://PROJECT_NAME.pkgs.visualstudio.com/ 2017-05-15T12:43:25.4594251Z CredentialProvider.TeamBuild: URI: https://PROJECT_NAME.pkgs.visualstudio.com/_packaging/245db6c8-7388-4394-a847-511b8116f00e/nuget/v3/index.json 2017-05-15T12:43:25.4594251Z CredentialProvider.TeamBuild: Is retry: True 2017-05-15T12:43:25.4594251Z CredentialProvider.TeamBuild: Matched prefix: https://PROJECT_NAME.pkgs.visualstudio.com/ 2017-05-15T12:43:25.6724260Z CredentialProvider.TeamBuild: Failed to authenticate to https://PROJECT_NAME.pkgs.visualstudio.com/_packaging/245db6c8-7388-4394-a847-511b8116f00e/nuget/v3/index.json from your project collection, prefix = https://PROJECT_NAME.pkgs.visualstudio.com/ 2017-05-15T12:43:25.8779993Z System.AggregateException: One or more errors occurred. —> NuGet.Protocol.Core.Types.FatalProtocolException: Unable to load the service index for source https://PROJECT_NAME.pkgs.visualstudio.com/_packaging/245db6c8-7388-4394-a847-511b8116f00e/nuget/v3/index.json. —> System.Net.Http.HttpRequestException: Response status code does not indicate success: 403 (Forbidden). 2017-05-15T12:43:25.8779993Z at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode() 2017-05-15T12:43:25.8779993Z at NuGet.Protocol.HttpSource.<>c__DisplayClass12_01.<<GetAsync>b__0>d.MoveNext() 2017-05-15T12:43:25.8779993Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8779993Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8779993Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8779993Z at NuGet.Common.ConcurrencyUtilities.<ExecuteWithFileLockedAsync>d__21.MoveNext() 2017-05-15T12:43:25.8779993Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8779993Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8779993Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8779993Z at NuGet.Protocol.HttpSource.<GetAsync>d__121.MoveNext() 2017-05-15T12:43:25.8779993Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8779993Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8779993Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8779993Z at NuGet.Protocol.ServiceIndexResourceV3Provider.<GetServiceIndexResourceV3>d__9.MoveNext() 2017-05-15T12:43:25.8779993Z --- End of inner exception stack trace --- 2017-05-15T12:43:25.8779993Z at NuGet.Protocol.ServiceIndexResourceV3Provider.<GetServiceIndexResourceV3>d__9.MoveNext() 2017-05-15T12:43:25.8779993Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8779993Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8779993Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8779993Z at NuGet.Protocol.ServiceIndexResourceV3Provider.<TryCreate>d__8.MoveNext() 2017-05-15T12:43:25.8789989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8789989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8789989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8789989Z at NuGet.Protocol.Core.Types.SourceRepository.<GetResourceAsync>d__161.MoveNext() 2017-05-15T12:43:25.8789989Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8789989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8789989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8789989Z at NuGet.Protocol.Core.Types.SourceRepository.<GetResourceAsync>d__151.MoveNext() 2017-05-15T12:43:25.8789989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8789989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8789989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8789989Z at NuGet.Protocol.HttpFileSystemBasedFindPackageByIdResourceProvider.<TryCreate>d__1.MoveNext() 2017-05-15T12:43:25.8789989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8789989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8789989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8789989Z at NuGet.Protocol.Core.Types.SourceRepository.<GetResourceAsync>d__161.MoveNext() 2017-05-15T12:43:25.8789989Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8789989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8789989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8789989Z at NuGet.Protocol.Core.Types.SourceRepository.<GetResourceAsync>d__151.MoveNext() 2017-05-15T12:43:25.8789989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8789989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8789989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8789989Z at NuGet.Commands.SourceRepositoryDependencyProvider.<EnsureResource>d__17.MoveNext() 2017-05-15T12:43:25.8789989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8789989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8789989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8789989Z at NuGet.Commands.SourceRepositoryDependencyProvider.<FindLibraryAsync>d__12.MoveNext() 2017-05-15T12:43:25.8789989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8789989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8789989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8789989Z at NuGet.DependencyResolver.RemoteDependencyWalker.<>c__DisplayClass13_1.<<FindLibrary>b__0>d.MoveNext() 2017-05-15T12:43:25.8789989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8789989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8789989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8789989Z at NuGet.DependencyResolver.RemoteDependencyWalker.<FindLibrary>d__13.MoveNext() 2017-05-15T12:43:25.8789989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8789989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8789989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8789989Z at NuGet.DependencyResolver.RemoteDependencyWalker.<FindLibraryByVersion>d__12.MoveNext() 2017-05-15T12:43:25.8789989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8789989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8789989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8789989Z at NuGet.DependencyResolver.RemoteDependencyWalker.<FindLibraryMatch>d__10.MoveNext() 2017-05-15T12:43:25.8789989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8789989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8789989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8789989Z at NuGet.DependencyResolver.RemoteDependencyWalker.<FindLibraryEntry>d__8.MoveNext() 2017-05-15T12:43:25.8789989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8799996Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8799996Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8799996Z at NuGet.DependencyResolver.RemoteDependencyWalker.<CreateGraphNode>d__3.MoveNext() 2017-05-15T12:43:25.8799996Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8799996Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8799996Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8799996Z at NuGet.DependencyResolver.RemoteDependencyWalker.<CreateGraphNode>d__3.MoveNext() 2017-05-15T12:43:25.8799996Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8799996Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8799996Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8799996Z at NuGet.Commands.ProjectRestoreCommand.<WalkDependenciesAsync>d__5.MoveNext() 2017-05-15T12:43:25.8799996Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8799996Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8799996Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8799996Z at NuGet.Commands.ProjectRestoreCommand.<TryRestore>d__3.MoveNext() 2017-05-15T12:43:25.8799996Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8819989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8819989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8819989Z at NuGet.Commands.RestoreCommand.<ExecuteRestoreAsync>d__15.MoveNext() 2017-05-15T12:43:25.8819989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8819989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8819989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8819989Z at NuGet.Commands.RestoreCommand.<ExecuteAsync>d__8.MoveNext() 2017-05-15T12:43:25.8819989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8819989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8819989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8819989Z at NuGet.Commands.RestoreRunner.<ExecuteAsync>d__7.MoveNext() 2017-05-15T12:43:25.8819989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8819989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8819989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8819989Z at NuGet.Commands.RestoreRunner.<ExecuteAndCommitAsync>d__6.MoveNext() 2017-05-15T12:43:25.8819989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8819989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8819989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8819989Z at NuGet.Commands.RestoreRunner.<CompleteTaskAsync>d__9.MoveNext() 2017-05-15T12:43:25.8819989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8819989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8819989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8819989Z at NuGet.Commands.RestoreRunner.<RunAsync>d__2.MoveNext() 2017-05-15T12:43:25.8819989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8819989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8819989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8819989Z at NuGet.Commands.RestoreRunner.<Run>d__1.MoveNext() 2017-05-15T12:43:25.8819989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8819989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8819989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8819989Z at NuGet.CommandLine.RestoreCommand.<ExecuteCommandAsync>d__30.MoveNext() 2017-05-15T12:43:25.8819989Z --- End of inner exception stack trace --- 2017-05-15T12:43:25.8819989Z at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions) 2017-05-15T12:43:25.8819989Z at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken) 2017-05-15T12:43:25.8819989Z at NuGet.CommandLine.Command.Execute() 2017-05-15T12:43:25.8819989Z at NuGet.CommandLine.Program.MainCore(String workingDirectory, String[] args) 2017-05-15T12:43:25.8819989Z ---> (Inner Exception #0) NuGet.Protocol.Core.Types.FatalProtocolException: Unable to load the service index for source https://PROJECT_NAME.pkgs.visualstudio.com/_packaging/245db6c8-7388-4394-a847-511b8116f00e/nuget/v3/index.json. ---> System.Net.Http.HttpRequestException: Response status code does not indicate success: 403 (Forbidden). 2017-05-15T12:43:25.8819989Z at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode() 2017-05-15T12:43:25.8819989Z at NuGet.Protocol.HttpSource.<>c__DisplayClass12_01.<<GetAsync>b__0>d.MoveNext() 2017-05-15T12:43:25.8819989Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8819989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8819989Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8819989Z at NuGet.Common.ConcurrencyUtilities.<ExecuteWithFileLockedAsync>d__21.MoveNext() 2017-05-15T12:43:25.8819989Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8819989Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8830023Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8830023Z at NuGet.Protocol.HttpSource.<GetAsync>d__121.MoveNext() 2017-05-15T12:43:25.8830023Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8830023Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8830023Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8830023Z at NuGet.Protocol.ServiceIndexResourceV3Provider.<GetServiceIndexResourceV3>d__9.MoveNext() 2017-05-15T12:43:25.8830023Z — End of inner exception stack trace — 2017-05-15T12:43:25.8830023Z at NuGet.Protocol.ServiceIndexResourceV3Provider.<GetServiceIndexResourceV3>d__9.MoveNext() 2017-05-15T12:43:25.8830023Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8830023Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8830023Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8830023Z at NuGet.Protocol.ServiceIndexResourceV3Provider.<TryCreate>d__8.MoveNext() 2017-05-15T12:43:25.8830023Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8830023Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8830023Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8830023Z at NuGet.Protocol.Core.Types.SourceRepository.<GetResourceAsync>d__161.MoveNext() 2017-05-15T12:43:25.8830023Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8830023Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8830023Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8830023Z at NuGet.Protocol.Core.Types.SourceRepository.<GetResourceAsync>d__151.MoveNext() 2017-05-15T12:43:25.8830023Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8830023Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8830023Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8830023Z at NuGet.Protocol.HttpFileSystemBasedFindPackageByIdResourceProvider.<TryCreate>d__1.MoveNext() 2017-05-15T12:43:25.8830023Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8830023Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8830023Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8830023Z at NuGet.Protocol.Core.Types.SourceRepository.<GetResourceAsync>d__161.MoveNext() 2017-05-15T12:43:25.8830023Z --- End of stack trace from previous location where exception was thrown --- 2017-05-15T12:43:25.8830023Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8830023Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8830023Z at NuGet.Protocol.Core.Types.SourceRepository.<GetResourceAsync>d__151.MoveNext() 2017-05-15T12:43:25.8830023Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8830023Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8830023Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8830023Z at NuGet.Commands.SourceRepositoryDependencyProvider.<EnsureResource>d__17.MoveNext() 2017-05-15T12:43:25.8830023Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8830023Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8830023Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8830023Z at NuGet.Commands.SourceRepositoryDependencyProvider.<FindLibraryAsync>d__12.MoveNext() 2017-05-15T12:43:25.8830023Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8830023Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8830023Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8830023Z at NuGet.DependencyResolver.RemoteDependencyWalker.<>c__DisplayClass13_1.<<FindLibrary>b__0>d.MoveNext() 2017-05-15T12:43:25.8830023Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8830023Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8830023Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8830023Z at NuGet.DependencyResolver.RemoteDependencyWalker.<FindLibrary>d__13.MoveNext() 2017-05-15T12:43:25.8830023Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8830023Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8830023Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8830023Z at NuGet.DependencyResolver.RemoteDependencyWalker.<FindLibraryByVersion>d__12.MoveNext() 2017-05-15T12:43:25.8830023Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8830023Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8830023Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8830023Z at NuGet.DependencyResolver.RemoteDependencyWalker.<FindLibraryMatch>d__10.MoveNext() 2017-05-15T12:43:25.8830023Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8830023Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8830023Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8830023Z at NuGet.DependencyResolver.RemoteDependencyWalker.<FindLibraryEntry>d__8.MoveNext() 2017-05-15T12:43:25.8830023Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8830023Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8830023Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8830023Z at NuGet.DependencyResolver.RemoteDependencyWalker.<CreateGraphNode>d__3.MoveNext() 2017-05-15T12:43:25.8841309Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8841309Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8841309Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8841309Z at NuGet.DependencyResolver.RemoteDependencyWalker.<CreateGraphNode>d__3.MoveNext() 2017-05-15T12:43:25.8841309Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8841309Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8841309Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8841309Z at NuGet.Commands.ProjectRestoreCommand.<WalkDependenciesAsync>d__5.MoveNext() 2017-05-15T12:43:25.8841309Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8841309Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8841309Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8841309Z at NuGet.Commands.ProjectRestoreCommand.<TryRestore>d__3.MoveNext() 2017-05-15T12:43:25.8841309Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8841309Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8841309Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8841309Z at NuGet.Commands.RestoreCommand.<ExecuteRestoreAsync>d__15.MoveNext() 2017-05-15T12:43:25.8841309Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8841309Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8841309Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8841309Z at NuGet.Commands.RestoreCommand.<ExecuteAsync>d__8.MoveNext() 2017-05-15T12:43:25.8841309Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8841309Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8841309Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8841309Z at NuGet.Commands.RestoreRunner.<ExecuteAsync>d__7.MoveNext() 2017-05-15T12:43:25.8841309Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8841309Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8841309Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8841309Z at NuGet.Commands.RestoreRunner.<ExecuteAndCommitAsync>d__6.MoveNext() 2017-05-15T12:43:25.8841309Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8841309Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8841309Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8841309Z at NuGet.Commands.RestoreRunner.<CompleteTaskAsync>d__9.MoveNext() 2017-05-15T12:43:25.8841309Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8841309Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8841309Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8841309Z at NuGet.Commands.RestoreRunner.<RunAsync>d__2.MoveNext() 2017-05-15T12:43:25.8841309Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8841309Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8841309Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8841309Z at NuGet.Commands.RestoreRunner.<Run>d__1.MoveNext() 2017-05-15T12:43:25.8841309Z — End of stack trace from previous location where exception was thrown — 2017-05-15T12:43:25.8850029Z at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() 2017-05-15T12:43:25.8850029Z at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) 2017-05-15T12:43:25.8850029Z at NuGet.CommandLine.RestoreCommand.<ExecuteCommandAsync>d__30.MoveNext()<— 2017-05-15T12:43:25.8850029Z 2017-05-15T12:43:25.9129995Z ##[error]Error: d:\a_tool\NuGet\4.0.0\x64\nuget.exe failed with return code: 1 2017-05-15T12:43:25.9129995Z ##[error]Packages failed to restore 2017-05-15T12:43:25.9199979Z ##[section]Finishing: Restore NuGet Packages

[infin8x]

Yep, you’ll want the build to run at Project Collection scope, not Project scope. Look for the “Build job authorization scope” dropdown in the Options tab of your build.

[tkrick]

@leonheess you are having perms problems or your builds are (via the build service)? Either way the feed you are accessing needs to give you or a group you belong to (or the build service if this is a build) permissions to read the feed. If you need more support look here: https://docs.microsoft.com/en-us/azure/devops/artifacts/feeds/feed-permissions?view=azure-devops . If still having an issue report your problem under Azure DevOps at https://developercommunity.visualstudio.com/content/problem/post.html?space=21