find which package you have installed that is bringing in @unimodules/core and upgrade or remove that package. if you use yarn, you can run yarn why @unimodules/core to see where it’s coming from. if you use npm, check your package-lock.json
I was having an issue with react-native-reanimated and reducing the version was the fix. Now, for some reason I update the version and everything still works fine. Also was able to build both ios and android with eas build. Great News! Thanks guys.