The build hangs at :app:bundleReleaseJsAndAssets when "./gradlew assembleRelease" is used

[ghprud]

Description

[I just ran ./gradlew assembleRelease from the ../android folder. The expectation is for the build to finish, but the build hangs for indefinite amount of time and fails with FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - process out of memory. This is a major blocker]

Reproduction

[In the project root folder, cd android, ./gradlew assembleRelease]

Solution

[A way to run the builds faster]

Additional Information

• React Native version: [0.39] (I have noticed this in earlier versions too)
• Platform: [Android]
• Operating System: [MacOS]

[DanielMSchmidt]

@facebook-github-bot stack-overflow

[cbpetersen]

If you need a work around, i had issues with this as well and ended up bundling the js manually first with

react-native bundle --platform android --dev false --entry-file index.android.js --bundle-output App/src/main/assets/index.android.bundle --assets-dest App/src/main/res/

and then ignoring the gradle task with

./gradlew assembleRelease -x bundleReleaseJsAndAssets

[AndrewJack]

You can limit the amount of React Native workers when bundling if you are having memory issues.

To set a limit add the following environment variable:

export REACT_NATIVE_MAX_WORKERS=2

http://stackoverflow.com/a/38201276

[AndrewJack]

@facebook-github-bot answered

[facebook-github-bot]

Closing this issue as @AndrewJack says the question asked has been answered. Please help us by asking questions on StackOverflow. StackOverflow is amazing for Q&A: it has a reputation system, voting, the ability to mark a question as answered. Because of the reputation system it is likely the community will see and answer your question there. This also helps us use the GitHub bug tracker for bugs only.

[billpatterson]

This is NOT closed in the sense of "solved". I have this problem, and setting the environment variable had no effect.

[luisfcofv]

I'm having the same issue

[g33ktony]

Same issue here on latest react-native 0.46.4 I don't have the realm files on project root
it just hangs on :app:bundleReleaseJsAndAssets I ran the command that @cbpetersen said, build succeeded but app stops when I open it

[eneskaya]

For me this issue only appears when I have a packager instance running and try to build the app via react-native run-android.

[NicegirlA]

I have same issue like this

[jtewright]

Quitting the packager and react-native run-android worked for me rn 47. If it's at all helpful, it was getting stuck consistently at the same completeness, 93% in my case.

[TGPSKI]

Any updates? Having this issue for all 0.48.x revisions

[TGPSKI]

Hi, I ended up solving this issue, and turned what I learned into a medium article that addresses this and related issues.

https://medium.com/@paterw00t_17915/android-react-native-fastlane-working-with-multiple-build-types-a9a6641c5704