Error: main.jsbundle does not exist. This must be a bug with React Native

[ThinhPhan]

Description

When building for Release

Reproduction

Additional Information

Solution

There are many cases that lead to this bug. And the root cause always point to 1 things bundle files.

Run bundle file manually (add to package.json > scripts). RN will bundle and generate main.jsbundle

"build-ios": "react-native bundle --entry-file index.js --platform ios --dev false --bundle-output ios/main.jsbundle --assets-dest ios",
 "build-android": "react-native bundle --platform android --dev false --entry-file index.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res",

Case 1: Check missing file in XCode > Targets App > Build Phase > Copy Bundle Resources
If not exist then add it

Case 2: Disable script in XCode > Target App > Build Phase > Bundle React Native code and images
Comment out the react-native-xcode.sh then run bundle manually then Archive will success.

Case 3: Update script in XCode > Target App > Build Phase > Bundle React Native code and images
Sometimes your node is install by nodeenv so you need to specify the path

References
https://stackoverflow.com/a/54645100/741197