Module AppRegistry is not registered callable module (calling runApplication)
Clear the cache with the following command:
react-native start --reset-cache
Just kill all node process and start npm server and run application:
Step1: run command killall -9 node
For windows users, run:
taskkill /im node.exe
Run
taskkill /f /im node.exe
if the process still persists.
Step2: run command npm start --reset-cache
Step3: run command react-native run-ios
OR react-native run-android
Closing the current Metro Bundler and restarting by resetting the cache worked for me
npm start -- --reset-cache