Unable to load script from assets 'index.android.bundle'.

[LzxHahaha]

Thanks so much for filing an issue or feature request! Please fill out the following (wherever relevant):

Steps to Reproduce

0. Config code push just like the document said
1. Generate and install a release apk
2. Try to run and then will crash

Expected Behavior

No crash

Actual Behavior

adb logcat:

12-17 14:18:30.851 12660 12676 D ReactNative: Initializing React Xplat Bridge.
12-17 14:18:30.851 12660 12676 D ReactNative: Initializing React Xplat Bridge before initializeBridge
12-17 14:18:30.861 12660 12676 D ReactNative: Initializing React Xplat Bridge after initializeBridge
12-17 14:18:30.861 12660 12676 D ReactNative: CatalystInstanceImpl.runJSBundle()
12-17 14:18:30.871 12660 12676 E AndroidRuntime: FATAL EXCEPTION: Thread-19940
12-17 14:18:30.871 12660 12676 E AndroidRuntime: Process: com.xxxapp, PID: 12660
12-17 14:18:30.871 12660 12676 E AndroidRuntime: java.lang.RuntimeException: Unable to load script from assets 'index.android.bundle'. Make sure your bundle is packaged correctly or you're running a packager server.
12-17 14:18:30.871 12660 12676 E AndroidRuntime: 	at com.facebook.react.bridge.CatalystInstanceImpl.jniLoadScriptFromAssets(Native Method)
12-17 14:18:30.871 12660 12676 E AndroidRuntime: 	at com.facebook.react.bridge.CatalystInstanceImpl.loadScriptFromAssets(CatalystInstanceImpl.java:216)
12-17 14:18:30.871 12660 12676 E AndroidRuntime: 	at com.facebook.react.bridge.JSBundleLoader$1.loadScript(JSBundleLoader.java:32)
12-17 14:18:30.871 12660 12676 E AndroidRuntime: 	at com.facebook.react.bridge.CatalystInstanceImpl.runJSBundle(CatalystInstanceImpl.java:243)
12-17 14:18:30.871 12660 12676 E AndroidRuntime: 	at com.facebook.react.ReactInstanceManager.createReactContext(ReactInstanceManager.java:1114)
12-17 14:18:30.871 12660 12676 E AndroidRuntime: 	at com.facebook.react.ReactInstanceManager.access$900(ReactInstanceManager.java:116)
12-17 14:18:30.871 12660 12676 E AndroidRuntime: 	at com.facebook.react.ReactInstanceManager$5.run(ReactInstanceManager.java:913)
12-17 14:18:30.871 12660 12676 E AndroidRuntime: 	at java.lang.Thread.run(Thread.java:818)

I try to unarchiver the apk, there is nothing in asset directory, so I tried to manually generate a bundle with

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

and generate a new apk, this one work just fine.

It any way to automatic generate index.android.bundle ?

Environment

• react-native-code-push version: 5.4.2
• react-native version: 0.57.4
• iOS/Android/Windows version: Android 6.0.1
• Does this reproduce on a debug build or release build? Release only
• Does this reproduce on a simulator, or only on a physical device? Physical device

[LzxHahaha]

fixed by this

[LzxHahaha]

Not working for staging

project.ext.react = [
    entryFile: "index.js",
    jsBundleDirDebug: "$buildDir/intermediates/merged_assets/debug/mergeDebugAssets/out",
    jsBundleDirStaging: "$buildDir/intermediates/merged_assets/staging/mergeStagingAssets/out",
    jsBundleDirRelease: "$buildDir/intermediates/merged_assets/release/mergeReleaseAssets/out"
]

...

staging {
        minifyEnabled enableProguardInReleaseBuilds
        proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
        signingConfig signingConfigs.release
        matchingFallbacks = ['debug', 'release']
}

run gradlew assembleStaging and no bundle has been generated

[yuri-kulikov]

Hi @LzxHahaha,
Thanks for reporting!

Could you please clarify which version of gradle you are using?
And if you could provide us with a simple reproducible demo it would be very helpful!

[LzxHahaha]

Hi @LzxHahaha,
Thanks for reporting!

Could you please clarify which version of gradle you are using?
And if you could provide us with a simple reproducible demo it would be very helpful!

gradle 3.2.1
demo

there are the generated files after run ./gradlew assembleStaging and ./gradlew assembleRelease

[yuri-kulikov]

@LzxHahaha thank you for that demo!

I reproduced the issue and found how to fix it.
You don't need to use this:

project.ext.react = [
    entryFile: "index.js",
    jsBundleDirDebug: "$buildDir/intermediates/merged_assets/debug/mergeDebugAssets/out",
    jsBundleDirStaging: "$buildDir/intermediates/merged_assets/staging/mergeStagingAssets/out",
    jsBundleDirRelease: "$buildDir/intermediates/merged_assets/release/mergeReleaseAssets/out"
]

It's a workaround for another issue (react-native < 0.57.2 + gradle plugin >= 3.2)

You need this (I've found a good example here):

project.ext.react = [
    entryFile: "index.js",
    bundleInStaging: true,
    devDisabledInStaging: true,
]

Please let me know if it helps you!

[LzxHahaha]

it work, thanks

[yuri-kulikov]

Great, glad to help!

I'll close the issue for now, but if you have any questions, feel free to reopen it.
Thanks for using CodePush!

[hardikmobileappsdev]

i'm getting same issue in signing release apk

AndroidRuntime: FATAL EXCEPTION: Thread-6
   Process: com.app.meatex, PID: 4542
   java.lang.RuntimeException: Unable to load script from assets ‘index.android.bundle’. Make sure your bundle is packaged correctly or you’re running a packager server.
       at com.facebook.react.bridge.CatalystInstanceImpl.jniLoadScriptFromAssets(Native Method)
       at com.facebook.react.bridge.CatalystInstanceImpl.loadScriptFromAssets(CatalystInstanceImpl.java:216)
       at com.facebook.react.bridge.JSBundleLoader$1.loadScript(JSBundleLoader.java:31)
       at com.facebook.react.bridge.CatalystInstanceImpl.runJSBundle(CatalystInstanceImpl.java:234)
       at com.facebook.react.ReactInstanceManager.createReactContext(ReactInstanceManager.java:1114)
       at com.facebook.react.ReactInstanceManager.access$900(ReactInstanceManager.java:113)
       at com.facebook.react.ReactInstanceManager$5.run(ReactInstanceManager.java:911)
       at java.lang.Thread.run(Thread.java:764)

"react-native": "0.55.4",

[OzzieOrca]

Removing

    jsBundleDirDebug: "$buildDir/intermediates/merged_assets/debug/mergeDebugAssets/out",
    jsBundleDirRelease: "$buildDir/intermediates/merged_assets/release/mergeReleaseAssets/out"

fixed it for me. Looks like I added them to fix something with react-native-fabric which we've since removed.