TFS build process can't pull nuget package - tfs

Question

I've set up a pipeline on TFS 16.131.28601.4. When it gets to the dotnet restore task it tries to pull a package from an internal feed, which is defined in the nuget.config along with the packageSourceCredentials.
The error I get when it fails to pull the package is:
Restoring packages for .NETCoreApp,Version=v3.1...
Retrying 'FindPackagesByIdAsyncCore' for source 'http://xx.xxx.x.xx:8080/tfs/PVS/_packaging/xxx/nuget/v2/FindPackagesById()?id='xxx.Api.Client'&semVerLevel=2.0.0'.
The data is invalid.
Retrying 'FindPackagesByIdAsyncCore' for source 'http://xx.xxx.x.xx:8080/tfs/PVS/_packaging/xxx/nuget/v2/FindPackagesById()?id='xxx.Api.Client'&semVerLevel=2.0.0'.
The data is invalid.
1>C:\Program Files\dotnet\sdk\3.1.301\NuGet.targets(128,5): error : Failed to retrieve information about 'xxx.Api.Client' from remote source 'http://xx.xxx.x.xx:8080/tfs/PVS/_packaging/xxx/nuget/v2/FindPackagesById()?id='xxx.Api.Client'&semVerLevel=2.0.0'. [D:\Build\agent\_work\5\s\xxx.Api.Client.Tests\xxx.Api.Client.Tests.csproj]
C:\Program Files\dotnet\sdk\3.1.301\NuGet.targets(128,5): error : The data is invalid. [D:\Build\agent\_work\5\s\xxx.Api.Client.Tests\xxx.Api.Client.Tests.csproj]
NuGet.Protocol.Core.Types.FatalProtocolException: Failed to retrieve information about 'xxx.Api.Client' from remote source 'http://xx.xxx.x.xx:8080/tfs/PVS/_packaging/xxx/nuget/v2/FindPackagesById()?id='xxx.Api.Client'&semVerLevel=2.0.0'.
---> Internal.Cryptography.CryptoThrowHelper+WindowsCryptographicException: The data is invalid.
The nuget.config looks like this:
<configuration>
<packageSources>
<!--To inherit the global NuGet package sources remove the <clear /> line below -->
<clear />
<add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
<add key="xxx" value="http://xx.xxx.xx.xx:8080/tfs/PVS/_packaging/xxx/nuget/v2" />
</packageSources>
<packageSourceCredentials>
<xxx>
<add key="Username" value="xxxx" />
<add key="Password" value="xxxxxxxxxxxxxxxxxxxxxxxxxxxx==" />
</xxx>
</packageSourceCredentials>
</configuration>
If I add a nuget restore task it works fine by pulling from the internal feed. Where I get stumped is the "The data is invalid" error, I can't find a reference to it anywhere.
Thanks for your help.

Answer 1

NuGet 4.8.2 and later supports the Azure Artifacts Credential Provider, which automatically acquires feed credentials when needed. We need to use the v3 endpoint of the nuget feed. For example:xxx.xx.x.xx:8080/tfs/xxx/_packaging/xxx/nuget/v3/index.json.
Please refer to this document.
We can use Azure Artifacts Credential Provider to authenticate and restore the feeds. The Azure Artifacts Credential Provider automates the acquisition of credentials needed to restore NuGet packages as part of your .NET development workflow.