[6] CocoaPods could not find compatible versions for pod "hermes-engine"

[!] CocoaPods could not find compatible versions for pod "hermes-engine":
In snapshot (Podfile.lock):
hermes-engine (from ../node_modules/react-native/sdks/hermes-engine/hermes-engine.podspec)

In Podfile:
hermes-engine (from ../node_modules/react-native/sdks/hermes-engine/hermes-engine.podspec)

It seems like you've changed the version of the dependency hermes-engine and it differs from the version stored in Pods/Local Podspecs.
You should run pod update hermes-engine --no-repo-update to apply changes made locally.

해결 방법

StackOverflow에서 발췌

1. cd ios
2. pod update hermes-engine --no-repo-update
3. pod install