BoxConfigBuilder class does not exist in Box.V2.Config name space (Box.V2.3.26.0.nupkg)

Hi,

To give you some context: I wanna automate uploading files to a folder using FileRequest Url. Since the filerequesturl is supposed to be publicly accessible I am gonna use App token use app token authentication (Limited app), pass an app token to .net SDK (I have to use the SDK in .Net framework 4.5+)

I installed this nuget Package:

https://github.com/box/box-windows-sdk-v2/releases/download/v3.26.0/Box.V2.3.26.0.nupkg

I am following this documentation:

https://developer.box.com/guides/authentication/tokens/sdks/

encontering the issue that BoxConfigBuilder class does not exist in Box.V2.Config name space.

I added the class from SDK source code to my solution to make it work, but Now I have to resolve other issues, the following constants are not found.

public Uri BoxApiHostUri { get; private set; } = new Uri(Constants.BoxApiHostUriString);
public Uri BoxAccountApiHostUri { get; private set; } = new Uri(Constants.BoxAccountApiHostUriString);
public Uri BoxApiUri { get; private set; } = new Uri(Constants.BoxApiUriString);
public Uri BoxUploadApiUri { get; private set; } = new Uri(Constants.BoxUploadApiUriString);

Any idea?