react-native-vector-iconsまたはreact-navigationが原因か??
Class RCTCxxModule was not exported. Did you forget to use RCT_EXPORT_MODULE()?
の警告が下に出る。
RCT_EXPORT_MODULE();
をどっかに書かないとダメ??
https://segmentfault.com/a/1190000006207887#articleHeader1
こっちのヘンテコな警告も・・。
RCTBridge required dispatch_sync to load RCTDevLoadingView. This may lead to deadlock