nuget restore error preventing images to build XM1

[ivanbuzyka]

Recently following error started appearing when running .\clean-install.ps1 (the problem reproducible only for XM1).
There is an issue with "nuget restore" that should be run in custom-image Dockerfile. See screenshot below.

As a result, it is not possible to build images and get up containers.
The message you're seeing on screenshot indicates an error. The error code 4294967295 is a generic error code that PowerShell uses to indicate that a command has failed. In this case, the nuget restore command is failing.

Everything use to be working a while before.

[ivanbuzyka]

It seems to fix this issue "Sitecore" nuget source should be updated to "https://nuget.sitecore.com/resources/v3/index.json", current one pointing to myget doesn't seem to work (https://sitecore.myget.org/F/sc-packages/api/v3/index.json)