React native expection java.lang.UnsatisfiedLinkError: dlopen failed: “/data/data/{package}/lib-main/libgnustl_shared.so” is 32-bit instead of 64-bit

Question

I am trying to integrate React Native with my existing Android App. I am getting the following exception, when initilizing React Native Screen:

java.lang.UnsatisfiedLinkError: dlopen failed: "/data/data/com.snapdeal.main/lib-main/libgnustl_shared.so" is 32-bit instead of 64-bit

The App is only crashing on 64-bit devices.

As per my learning so far, I've found this issue reported on React Native Repo, but the solution suggested in this thread is not helpful as I am not using any external SO library in existing App.

Apart from above, I've realized another difference in library structure on the device where my App is installed. I am comparing structure of my App vs react native demo app.

React demo App

root@generic_x86_64:**/data/data/com.react.demo/lib** # ls
libfb.so
libfolly_json.so
libglog.so
libglog_init.so
libgnustl_shared.so
libicu_common.so
libimagepipeline.so
libjsc.so
libreactnativejni.so
libreactnativejnifb.so

root@generic_x86_64:/data/data/**com.react.demo**/lib-main # ls
dso_deps
dso_lock
dso_manifest
dso_state

My App

root@generic_x86_64:/data/data/**com.my.app**/lib-main # ls
dso_deps
dso_lock
dso_manifest
dso_state
libfb.so
libfolly_json.so
libglog.so
libglog_init.so
libgnustl_shared.so
libicu_common.so
libimagepipeline.so
libjsc.so
libreactnativejni.so
libreactnativejnifb.so

Sharing few more details about my project:

package.json

{
  "name": "projectname",
  "version": "1.0.0",
  "description": "Native NPM",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "node node_modules/react-native/local-cli/cli.js start"
  },
  "repository": {
    "type": "git",
    "url": ""
  },
  "author": "Ishan D",
  "license": "ISC",
  "dependencies": {
    "react": "^15.3.2",
    "react-native": "^0.37.0",
    "react-native-linear-gradient": "^1.5.15",
    "rn-viewpager": "^1.1.3"
  },
  "devDependencies": {}
}

dependencies used in android native project

ext {
    compileSdkVersion = 24
    buildToolsVersion = '24.0.2'
    minSdkVersion = 16
    targetSdkVersion = 24
    supportLibrariesVersion = '23.0.1'
    playServiceVersion = '9.0.2'

    dep = [
            fabricPlugin          : 'io.fabric',
            fabricMavenUrl        : 'https://maven.fabric.io/public',
            fabricClasspath       : 'io.fabric.tools:gradle:1.+',

            playServiceClasspath  : 'com.google.gms:google-services:1.3.0-beta1',
            playServicePlugin     : 'com.google.gms.google-services',

            playServiceAppindexing: "com.google.android.gms:play-services-appindexing:$playServiceVersion",
            playServiceLocation   : "com.google.android.gms:play-services-location:$playServiceVersion",
            playServiceVision     : "com.google.android.gms:play-services-vision:$playServiceVersion",
            playServiceAuth       : "com.google.android.gms:play-services-auth:$playServiceVersion",
            playServiceBase       : "com.google.android.gms:play-services-base:$playServiceVersion",
            playServiceIdentity   : "com.google.android.gms:play-services-identity:$playServiceVersion",
            playServiceAnalytics  : "com.google.android.gms:play-services-analytics:$playServiceVersion",
            playServiceGcm        : "com.google.android.gms:play-services-gcm:$playServiceVersion",

            underCouchClasspath   : 'de.undercouch:gradle-download-task:2.0.0',
            underCouchPluigin     : 'de.undercouch.download',

            crashlytics           : 'com.crashlytics.sdk.android:crashlytics:2.4.0@aar',

            moengage              : 'com.moengage:moe-android-sdk:6.0.29',

            supportV4             : "com.android.support:support-v4:$supportLibrariesVersion",
            supportAppCompatV7    : "com.android.support:appcompat-v7:$supportLibrariesVersion",
            supportCardviewV7     : "com.android.support:cardview-v7:$supportLibrariesVersion",
            supportDesignV7       : "com.android.support:design:$supportLibrariesVersion",

            okhttp                : 'com.squareup.okhttp:okhttp:2.5.0',
            junit                 : 'junit:junit:4.12',
            mockito               : 'org.mockito:mockito-core:1.10.19'
    ]
}

Any clue is appreciated.

PS: I know react-native does support 64-bit binaries and I am not using any external library.

Answer 1

Add the following into app/gradle file

defaultConfig {
....

    ndk {
        abiFilters "armeabi-v7a", "x86", 'armeabi', 'arm64-v8a'
    }

    packagingOptions {
        exclude "lib/arm64-v8a/libgnustl_shared.so"
    }
}

also make sure you working with the same port.

adb reverse tcp:8081 tcp:8081

Answer 2

It can also help you: build.gradle (app)

android{
   ...
   defaultConfig {
      ....
      ndk {
        abiFilters "armeabi-v7a", "x86", 'armeabi', 'arm64-v8a'
      }
      packagingOptions {
               exclude "lib/arm64-v8a/libgnustl_shared.so"
               exclude '/lib/mips64/**'
               exclude '/lib/arm64-v8a/**'
               exclude '/lib/x86_64/**'
      }
      ...
   }
}

Answer 3

React Native doesn't provide 64-bit version of the native code and the system always fall back to 32-bit. They have resolved this issue and is scheduled to be part of the RN 0.59 release Ref: https://github.com/facebook/react-native/issues/2814#issuecomment-457644191