Some libraries require that "missingDimensionStrategy" be set in the Gradle file, for example react-native-iap on Android requires this to pick either Google Play or Amazon's store.
I had a go at writing a config plugin for this but I'll be honest I don't know much about how any of this new stuff works and it just doesn't seem to do anything for me https://github.com/jameswilddev/missing-dimension-strategy-expo-config-plugin so perhaps something built by Expo themselves would be better