Building the Winget.retSource solution gives error

[TKU8199]

Hi,

i'm new here working with github and i would like to test out a private repository for some custom apps.

i tried to build the solution but i get errors connecting to the nuget

Severity Code Description Project File Line Suppression State
Error NU1301 Unable to load the service index for source https://pkgs.dev.azure.com/ms/winget-cli-restsource/_packaging/winget/nuget/v3/index.json. WinGet.RestSource.AppConfig C:\Source\winget-cli-restsource-main\src\WinGet.RestSource.AppConfig\WinGet.RestSource.AppConfig.csproj 1

i wonder if someone can help me getting further?

Thank you