New Xcode error out of the blue

[arualana]

All of a sudden I am getting this error on bitrise build

Error (Xcode): ../.pub-cache/hosted/pub.dev/auto_route-7.8.5/lib/src/router/widgets/auto_route_navigator.dart:116:14: Error: The method 'PopScope' isn't defined for the class 'AutoRouteNavigatorState'

Using auto_route: ^7.8.4

The flutter version being installed is https://storage.googleapis.com/flutter_infra_release/releases/stable/macos/flutter_macos_3.13.7-stable.zip

Note: previous builds that had passed before now too get this error too on trying to rebuild them, so it is nothing in the new code causing this. So, for the same code there were no issues 2 months ago