React Native App crashes on Launch Screen on device

Question

I\'m starting with React Native, everything works fine in the iOS simulator. I decide to try it on a device.

The app launches, I can play with it, I close/reopen it arou

Answer 1

I had this problem also, what triggered it for me though was updating react and react-native.

I did a build after updating and then I experienced the same issue. I downgraded back to the previous versions of react and react-native, but that didn't work for me.

I tried removing node modules, and reinstalling, that didn't help. Then I noticed that when I was building: react-native run-ios,

the files in ios/build were not updating

I rm -rf ios/build/ and then I react-native run-ios and the ios/build folder populated. My app ran fine after that.