nuget restore failing in team services build - visual-studio-2017

Question

I have 2 local assemblies referenced via nuget (packed the dll's up) using vs2017 on a asp.net core solution, builds fine locally.
Now trying to generate a build via VSTS i am getting the following error,
Detected NuGet version 4.0.0.2283 / 4.0.0
SYSTEMVSSCONNECTION exists true
Saving NuGet.config to a temporary config file.
d:\a\_tool\NuGet\4.0.0\x64\nuget.exe restore d:\a\1\s\TestFrameworkCoreAPI.sln -Verbosity Detailed -NonInteractive -ConfigFile d:\a\1\Nuget\tempNuGet_37.config
NuGet Version: 4.0.0.2283
MSBuild auto-detection: using msbuild version '15.3.409.57025' 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.
MSBuild P2P timeout [ms]: 120000
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\w53qa5rr.4sd.targets" /p:RestoreTaskAssemblyFile="d:\a\_tool\NuGet\4.0.0\x64\nuget.exe" /p:RestoreGraphOutputPath="d:\a\_temp\NuGet-Scratch\4mlmlfgh.mmy.result" /p:ExcludeRestorePackageImports=true /p:RestoreRecursive=False /p:RestoreProjectFilterMode=exclusionlist /p:RestoreContinueOnError=WarnAndContinue /p:RestoreGraphProjectInput="d:\a\1\s\TestFrameworkCoreAPI\TestFrameworkCoreAPI.csproj;" "d:\a\_temp\NuGet-Scratch\w53qa5rr.4sd.targets"
Running restore with 2 concurrent jobs.
Reading project file d:\a\1\s\TestFrameworkCoreAPI\TestFrameworkCoreAPI.csproj.
Reading project file d:\a\1\s\TestFrameworkCoreAPI\TestFrameworkCoreAPI.csproj.
Restoring packages for d:\a\1\s\TestFrameworkCoreAPI\TestFrameworkCoreAPI.csproj...
Restoring packages for d:\a\1\s\TestFrameworkCoreAPI\TestFrameworkCoreAPI.csproj...
Restoring packages for .NETCoreApp,Version=v1.1...
Restoring packages for .NETCoreApp,Version=v2.0...
System.AggregateException: One or more errors occurred. ---> NuGet.Protocol.Core.Types.FatalProtocolException: Failed to retrieve information about 'Microsoft.VisualStudio.Web.CodeGeneration.Tools' from remote source 'D:\TestFrameworkAssemblies'.
at NuGet.Protocol.LocalV3FindPackageByIdResource.GetVersionsCore(String id, ILogger logger)
at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory)
at NuGet.Protocol.LocalV3FindPackageByIdResource.GetAllVersionsAsync(String id, SourceCacheContext cacheContext, ILogger logger, CancellationToken token)
at NuGet.Commands.SourceRepositoryDependencyProvider.<FindLibraryAsync>d__12.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
Error: d:\a\_tool\NuGet\4.0.0\x64\nuget.exe failed with return code: 1
Packages failed to restore
I have a nuget.config file in a .nuget folder located in the root of solution,
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<packageSources>
<!-- remove any machine-wide sources with <clear/> -->
<clear />
<add key="Test Framework" value="D:\TestFrameworkAssemblies" />
<add key="nuget.org" value="https://www.nuget.org/api/v2/" />
</packageSources>
<activePackageSource>
<add key="All" value="(Aggregate source)" />
</activePackageSource>
</configuration>
This is what is in the VSTS build def, NuGet restore step
It looks like it always references my local assembly and not the standard nuget.org, now in the config file, if i take out my local entry to framework assemblies, the nuget part works but i get a primary reference error as it cannot find the 2 assemblies i have packed locally.
Been going round in circles with this at the moment, how can you get VSTS to restore local packed assemblies as well as from nuget.org. I am using Hosted 2017 as well.
thanks in advance

Answer 1

It seems you were queue the build on Hosted agent. Since there has the packages located on your local machine, you should build with the private agent which located on your local machine.
Additional, if you need to queue the build on Hosted agent, you should add the local packages in repository, and then reference the packages with the new path and change the value in nuget.config.