With error:

`"lottie-ios": "^3.1.9",`
"lottie-react-native": "^3.5.0",
build success
build failed
I just had the same issue after upgrading all packages, I guess something in lottie-react-native is incompatible with lottie-ios 3.1.9 and has to be fixed there.
Just get back to 3.1.8 and it will work, it is the version that should be used according to the lottie-react-native readme.
"lottie-ios": "3.1.8",
Most helpful comment
I just had the same issue after upgrading all packages, I guess something in lottie-react-native is incompatible with lottie-ios 3.1.9 and has to be fixed there.
Just get back to 3.1.8 and it will work, it is the version that should be used according to the lottie-react-native readme.
"lottie-ios": "3.1.8",