I have an error in my app when it's run in android emulator.
My app works perfectly in iOS, but when I tried to run in Android show this.
Why occurred this?
Related
I started having this frustrating issue that pops up anytime I reload the metro server. I can't seem to find a solution than restarting my PC every time.
If I run react native app on my local Android Studio Emulator, I get the following error randomly (sometimes it works fine, then other times it gives this error). This has to be the emulator because when I run the app on my physical device, it runs fine whilst giving the same error on the Emulator.
I've been given a new React Native app to maintain and whenever I build it or run it in the simulator, I get the "Application has not been registered" error. There are no other errors in the console before this message (although there are some warnings). I can't find any code issues as if the error message is dismissed in the simulator, the app runs fine so the bundler is running correctly, although on an actual device, this registers as a crash on open.
I'm running in the simulator using react-native run-ios from the project root. Builds for running on actual devices is managed by Fastlane.
My app doesn't make an explicit call AppRegistry.registerComponent due (I think) to the way react-native-navigation is set up, so most of the info online about this error doesn't apply.
Where should I go next to figure this out?
I've spend lots of time solving this problem but it didn't work
When I tried to run android emulator in react native by typing react-native run-android
but it didn't work beacause of this error
detail code for error that happened
so I opened react-native doctor to see the problem. cause I already have Android Studio, and the emulator was already running before I typed react-native run-android.
Finally I found my error saying this.
problem on react-native doctor
Is there anyone who can teach me to solve this problem?
I have no idea why the computer can't recognize Android Studio.
so sad..
I tried to build my react native app and got the error below.
it works totally fine in debug build while app crashes in release build.
I got this by logging my android device with the command adb logcat '*:E'
Thanks in advance.
react-native run-ios successfully builds the project and the app is started at simulator, however, I got the error below, I tried to get more details in the Xcode log, I only got this:
[fatal][tid:com.facebook.react.ExceptionsManagerQueue] Unhandled JS Exception: Native module cannot be null.
How can I debug this error? is it just a warning? I can see fatal in Xcode log.
If I press on Dismiss in simulator, the error below gone and the app seems to work fine..
Any idea?