In my react-native project (react-native@0.60) in the ios/ dir I run pod install and get this error:
pod install
[!] Invalid `Podfile` file: no implicit con
i just dropped the whole node_modules and RN cache folder and did a clean reinstall, this fixed the "use_native_modules" problem so far....but after that i had to hassle a lot with other libs which where just not RN0.60 ready ;)