[!] CocoaPods could not find compatible versions for pod "React/Core":
In Podfile:
react-native-fetch-blob (from `../node_modules/react-native-fetch-blob`) was resolved to 0.10.6, which depends on
React/Core
None of your spec sources contain a spec satisfying the dependency: `React/Core`.
You have either:
* out-of-date source repos which you can update with `pod repo update` or with `pod install --repo-update`.
* mistyped the name or version.
* not added the source repo that hosts the Podspec to your Podfile.
yarn install