error Failed to launch emulator. Reason: Could not start emulator within 30 seconds..
warn Please launch an emulator manually or connect a device. Otherwise app may fail to launch.
info Installing the app...
Starting a Gradle Daemon, 2 incompatible and 3 stopped Daemons could not be reused, use --status for details
solved
Remove Android assets cache : cd android && gradlew clean && cd ..
Relaunch metro server : npx react-native run-android
error Failed to launch emulator. Reason: Could not start emulator within 30 seconds.. warn Please launch an emulator manually or connect a device. Otherwise app may fail to launch. info Installing the app... Starting a Gradle Daemon, 2 incompatible and 3 stopped Daemons could not be reused, use --status for details
solved Remove Android assets cache : cd android && gradlew clean && cd .. Relaunch metro server : npx react-native run-android
출처 https://github.com/facebook/react-native/issues/29396