Unity Cloud Build. Player export failed.Reason: 'pod' command not found;

I have recently decided to give Unity cloud build a try and am trying to build my project for IOS but after every build i get this error

“[Unity] Player export failed. Reason: ‘pod’ command not found; unable to generate a usable Xcode project. You can install cocoapods with the Ruby gem package manager:”

what does this mean?

Same problem here, trying to use play-games-plugin-for-unity
(GitHub - playgameservices/play-games-plugin-for-unity: Google Play Games plugin for Unity)

Same problem here, trying to use admob