[Android] Debug Build Will Run, Release Build Will Not

RN 0.34.1

Debug version of the android application runs perfectly fine:

react-native run-android

Production build will build successfully, but will not run (“Unfortunately, appName has stopped” modal):

react-native run-android --variant=release

I have made sure that ProGuard is turned off. Here are the errors reported by logcat:

10-05 14:13:46.102  5163  5179 E ReactNativeJS: Invalid regular expression: unmatched parentheses
10-05 14:13:46.242  5163  5179 E ReactNativeJS: Module AppRegistry is not a registered callable module (calling runApplication)
10-05 14:13:46.774  5163  5179 E ReactNativeJS: Module AppRegistry is not a registered callable module (calling unmountApplicationComponentAtRootTag)

The odd thing, is that I have searched for regular expressions in my codebase and haven’t found any. I do not get these errors in logcat when running the debug version of the app. So I’m not sure why or where the production build is getting tripped up.

[akraminakib]

I get the same issue, debug build works normally after build but the release build closes on opening it with the same error message (“Unfortunately, app_name has stopped.”)

[rajeshzmoke]

hi i have the same issue where the release build stops working when the app is opened