Unable to restore NuGet packages from a private source over the CLI.

[jbvirt]

Description

We have added our private GitHub Enterprise repository and its ApiKey to Assets/NuGet.config.
We have no issues restoring from a private repository in Unity itself.
However, when we try to restore the package using the CLI we get the following error:

Unable to retrieve package from http://www.nuget.org/api/v2/Packages(Id='Private.Package',Version='1.0.0')
System.Net.WebException: The remote server returned an error: (404) Not Found.
   at System.Net.HttpWebRequest.GetResponse()
   at NugetForUnity.Helper.WebRequestHelper.RequestUrl(String url, String userName, String password, Nullable`1 timeOut) in /_/src/NuGetForUnity/Editor/Helper/WebRequestHelper.cs:line 57
   at NugetForUnity.PackageSource.NugetPackageSourceV2.GetPackagesFromUrl(String url) in /_/src/NuGetForUnity/Editor/PackageSource/NugetPackageSourceV2.cs:line 465
   at NugetForUnity.PackageSource.NugetPackageSourceV2.GetSpecificPackage(INugetPackageIdentifier package) in /_/src/NuGetForUnity/Editor/PackageSource/NugetPackageSourceV2.cs:line 187

This seems to indicate that it is trying to use the default source, and is not looking at the NuGet.config.

• NuGet Package: It's private. Assume 'Private.Package'
• NuGetForUnity Version: A recent git hash: 12574c32f658fa23c194357141abc3fc157ea362 CLI version 4.1.1
• Unity Version: 2022.3.2.f1
• Operating System: mcr.microsoft.com/dotnet/sdk:8.0 container. So Ubuntu.

Also, there is a typo in your issue template. (enabeling when it should be enabling)

[JoC0de]

Hi @jbvirt
Thanks for creating the issue.
Seems strange, are you running the Command from the correct location or specified the correct project path. The error shows that it uses the V2 API witch is not the default, so there need to be a NuGet.config file that is used instead of the one with your own config.
If could also relate to not using the latest version of the CLI.

[jbvirt]

We use the command nugetforunity restore ".".
This command worked perfectly fine before we added the private NuGet package.
The CLI version is the latest, version 4.1.1.

However, updating to the V3 API solved the issue.
Feel free to close this issue, or leave it open and investigate the V2 API behavior.