Base commit:fb14fd4

Base commit:fb14fd4

I've also been experiencing this since updating this morning, reverting to 4.0.1 and 6.3 works until this PR is merged :)

Just rebased so that the commit message is more descriptive

I have the reproducible case and fixed case with this patch

https://github.com/tomoima525/android_build_test_rn

Reproducible case

To reproduce the issue, run the command below

$ cd android$ ./gradlew clean :app:assembleRelease // or ./gradlew clean :app:releaseBundle

app-release.apk will be generated but it does not have index.android.bundle build

Fixed case

I added the fix in#30177 . Running the command below will apply the patch toreact.gradle and you can see the issue is resolved

$ yarn add_patch$ cd android$ ./gradlew clean :app:assembleRelease // or ./gradlew clean :app:releaseBundle

(The script is tested on Mac. If the copying does not work on Linux, try directly copying thereact-patch.gradle tonode_modules/react-native/react.gradle)

Confirmed for me this fixes the error it says it fixes for RN0.63.3 and android gradle plugin 4.1.0

Here's a patch-package compatible thing you can cut-and-paste

catpatches/react-native+0.63.3.patch

diff --git a/node_modules/react-native/react.gradle b/node_modules/react-native/react.gradleindex 6441d93..c28cbd4 100644--- a/node_modules/react-native/react.gradle+++ b/node_modules/react-native/react.gradle@@ -302,6 +302,11 @@ afterEvaluate {             enabled(currentBundleTask.enabled)         } +        // mergeResources task runs before the bundle file is copied to the intermediate asset directory from Android plugin 4.1+.+        // This ensures to copy the bundle file before mergeResources task starts+        def mergeResourcesTask = tasks.findByName("merge${targetName}Resources")+        mergeResourcesTask.dependsOn(currentAssetsCopyTask)+         packageTask.dependsOn(currentAssetsCopyTask)         if (buildPreBundleTask != null) {             buildPreBundleTask.dependsOn(currentAssetsCopyTask)

This pull request was successfully merged by@tomoima525 in53f5500.

^{When will my fix make it into a release? |Upcoming Releases}

Development machine OS: MacOS X
IDE: Ms VSCODE
"react": "^17.0.1",
"react-native": "^0.63.4",
gradle plugin 4.1.1+ / gradle 6.5-all (distributionUrl=https://services.gradle.org/distributions/gradle-6.5-all.zip)

I had also aply the patch from here#29398 (comment)

I found a workarround to publish my apk to play console and don' t get the error index.android.bundle missing

In root directory of your project run the following commands
cd ./android/
./gradlew clean
rm -rf ~/.gradle/caches/*
cd ..
npx 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
rm -rf ./android/app/src/main/res/drawable-*
rm -rf ./android/app/src/main/res/raw
cd ./android/
./gradlew assembleRelease

Install my apk to any device and works well and upload the apk to play console and the error dissapear too!

Confirmed for me this fixes the error it says it fixes for RN0.63.3 and android gradle plugin 4.1.0

Here's a patch-package compatible thing you can cut-and-paste

catpatches/react-native+0.63.3.patch

diff --git a/node_modules/react-native/react.gradle b/node_modules/react-native/react.gradleindex 6441d93..c28cbd4 100644--- a/node_modules/react-native/react.gradle+++ b/node_modules/react-native/react.gradle@@ -302,6 +302,11 @@ afterEvaluate {             enabled(currentBundleTask.enabled)         } +        // mergeResources task runs before the bundle file is copied to the intermediate asset directory from Android plugin 4.1+.+        // This ensures to copy the bundle file before mergeResources task starts+        def mergeResourcesTask = tasks.findByName("merge${targetName}Resources")+        mergeResourcesTask.dependsOn(currentAssetsCopyTask)+         packageTask.dependsOn(currentAssetsCopyTask)         if (buildPreBundleTask != null) {             buildPreBundleTask.dependsOn(currentAssetsCopyTask)

@mikehardy For those discovering this solution, I thought I'd figure out exact instructions to patch from 0.63.3 as my project is not ready to migrate to 0.64; this seems like a good option. I've not usedpatch-package before, runningpatch-package patches/react-native+0.63.3.patch would require me to make the changes to thenode_modules myself first, correct?

@pixelknitter - nope,yarn add patch-package && mkdir patches drop the patch file into there (named correctly! that's how patch-package figures out what package etc) thenyarn patch-package should do it. Or all the equivalent-different-but-same npm commands.

If you are making anew patch (like how I generated this file) to fix some bug where you are the first person to find+fix, then you hack around in node_modules by hand yes, and runyarn patch-package <package name> and it will create a new patch for you with your new change in it for distribution like this patch here

@pixelknitter - nope,yarn add patch-package && mkdir patches drop the patch file into there (named correctly! that's how patch-package figures out what package etc) thenyarn patch-package should do it. Or all the equivalent-different-but-same npm commands.

If you are making anew patch (like how I generated this file) to fix some bug where you are the first person to find+fix, then you hack around in node_modules by hand yes, and runyarn patch-package <package name> and it will create a new patch for you with your new change in it for distribution like this patch here

Thanks for the detailed response!

if you'r using proguard add an exception to android/app/proguard-rules.pro:

-keep class com.mypackage.BuildConfig { *; }

com.mypackage should match the package value in your app/src/main/AndroidManifest.xml file.

Confirmed for me this fixes the error it says it fixes for RN0.63.3 and android gradle plugin 4.1.0

Here's a patch-package compatible thing you can cut-and-paste

catpatches/react-native+0.63.3.patch

diff --git a/node_modules/react-native/react.gradle b/node_modules/react-native/react.gradleindex 6441d93..c28cbd4 100644--- a/node_modules/react-native/react.gradle+++ b/node_modules/react-native/react.gradle@@ -302,6 +302,11 @@ afterEvaluate {             enabled(currentBundleTask.enabled)         } +        // mergeResources task runs before the bundle file is copied to the intermediate asset directory from Android plugin 4.1+.+        // This ensures to copy the bundle file before mergeResources task starts+        def mergeResourcesTask = tasks.findByName("merge${targetName}Resources")+        mergeResourcesTask.dependsOn(currentAssetsCopyTask)+         packageTask.dependsOn(currentAssetsCopyTask)         if (buildPreBundleTask != null) {             buildPreBundleTask.dependsOn(currentAssetsCopyTask)

thank you, but it's not work for me.
i supplement code below to make it work.

def compressAssetsTask = tasks.findByName("compress${targetName}Assets")compressAssetsTask.dependsOn(currentAssetsCopyTask)

@xczaixian this is no longer a problem with current versions (0.64.1) - I'm not carrying this patch any longer as it has been integrated and released. Better to update and get the real fix

Ciao,
I'm writing for all the people who, like me, have experienced this problem.

Affected Versions

• React Native: 0.67.x
• Gradle 7.2.x - 7.3.x

The common error

Unable to load script. Make sure you're either running a Metro server (run 'react-native start') or that your bundle 'index.android.bundle' is packaged correctly for release.

In short, index.android.bundle is missing.
Common problem when trying to use productFlavors.

The problem
I found that the problem is in a native react gradle task, to be precise in the copy task calledcurrentAssetsCopyTask located inreact.gradlefile.
As I understand, this "task" is responsible for copying theassets and in particularindex.android.bundle and pasting them into the temporary directories used to generate the APK.

The solution
I created a repo that with a js script solves the problem before building the android app
https://github.com/9christian9/FIX-Android-productFlavors-RN0.67-gradle7.2-7.3

I hope this will help.
With ♥ by Christian